4 This file gives a brief overview of the major changes between each OpenSSL
5 release. For more details please read the CHANGES file.
10 - [OpenSSL 3.3](#openssl-33)
11 - [OpenSSL 3.2](#openssl-32)
12 - [OpenSSL 3.1](#openssl-31)
13 - [OpenSSL 3.0](#openssl-30)
14 - [OpenSSL 1.1.1](#openssl-111)
15 - [OpenSSL 1.1.0](#openssl-110)
16 - [OpenSSL 1.0.2](#openssl-102)
17 - [OpenSSL 1.0.1](#openssl-101)
18 - [OpenSSL 1.0.0](#openssl-100)
19 - [OpenSSL 0.9.x](#openssl-09x)
24 ### Major changes between OpenSSL 3.3 and OpenSSL 3.4 [under development]
26 OpenSSL 3.4.0 is a feature release adding significant new functionality to
29 This release is in development.
34 ### Major changes between OpenSSL 3.2 and OpenSSL 3.3 [under development]
36 OpenSSL 3.3.0 is a feature release adding significant new functionality to
39 This release adds the following new features:
41 * Support for qlog for tracing QUIC connections has been added
43 * Added APIs to allow configuring the negotiated idle timeout for QUIC
44 connections, and to allow determining the number of additional streams
45 that can currently be created for a QUIC connection.
47 * Added APIs to allow disabling implicit QUIC event processing for QUIC SSL
50 * Added APIs to allow querying the size and utilisation of a QUIC stream's
53 * New API `SSL_write_ex2`, which can be used to send an end-of-stream (FIN)
54 condition in an optimised way when using QUIC.
56 * Limited support for polling of QUIC connection and stream objects in a
59 * Added a new EVP_DigestSqueeze() API. This allows SHAKE to squeeze multiple
60 times with different output sizes.
62 * Added exporter for CMake on Unix and Windows, alongside the pkg-config
65 * The BLAKE2s hash algorithm matches BLAKE2b's support for configurable
68 * The EVP_PKEY_fromdata function has been augmented to allow for the
69 derivation of CRT (Chinese Remainder Theorem) parameters when requested
71 * Added API functions SSL_SESSION_get_time_ex(), SSL_SESSION_set_time_ex()
72 using time_t which is Y2038 safe on 32 bit systems when 64 bit time
75 * Unknown entries in TLS SignatureAlgorithms, ClientSignatureAlgorithms
76 config options and the respective calls to SSL[_CTX]_set1_sigalgs() and
77 SSL[_CTX]_set1_client_sigalgs() that start with `?` character are
78 ignored and the configuration will still be used.
80 * Added `-set_issuer` and `-set_subject` options to `openssl x509` to
81 override the Issuer and Subject when creating a certificate. The `-subj`
82 option now is an alias for `-set_subject`.
84 * Added several new features of CMPv3 defined in RFC 9480 and RFC 9483
86 * New option `SSL_OP_PREFER_NO_DHE_KEX`, which allows configuring a TLS1.3
87 server to prefer session resumption using PSK-only key exchange over PSK
88 with DHE, if both are available.
90 * New atexit configuration switch, which controls whether the OPENSSL_cleanup
91 is registered when libcrypto is unloaded.
93 * Added X509_STORE_get1_objects to avoid issues with the existing
94 X509_STORE_get0_objects API in multi-threaded applications.
96 This release incorporates the following potentially significant or incompatible
99 * Applied AES-GCM unroll8 optimisation to Microsoft Azure Cobalt 100
101 * Optimized AES-CTR for ARM Neoverse V1 and V2
103 * Enable AES and SHA3 optimisations on Applie Silicon M3-based MacOS systems
106 * Various optimizations for cryptographic routines using RISC-V vector crypto
109 * Added assembly implementation for md5 on loongarch64
111 * Accept longer context for TLS 1.2 exporters
113 * The activate and soft_load configuration settings for providers in
114 openssl.cnf have been updated to require a value of [1|yes|true|on]
115 (in lower or UPPER case) to enable the setting. Conversely a value
116 of [0|no|false|off] will disable the setting.
118 * In `openssl speed`, changed the default hash function used with `hmac` from
121 * The `-verify` option to the `openssl crl` and `openssl req` will make the
122 program exit with 1 on failure.
124 * The d2i_ASN1_GENERALIZEDTIME(), d2i_ASN1_UTCTIME(), ASN1_TIME_check(), and
125 related functions have been augmented to check for a minimum length of
126 the input string, in accordance with ITU-T X.690 section 11.7 and 11.8.
128 * OPENSSL_sk_push() and sk_<TYPE>_push() functions now return 0 instead of -1
129 if called with a NULL stack argument.
131 * New limit on HTTP response headers is introduced to HTTP client. The
132 default limit is set to 256 header lines.
134 This release incorporates the following bug fixes and mitigations:
136 * The BIO_get_new_index() function can only be called 127 times before it
137 reaches its upper bound of BIO_TYPE_MASK and will now return -1 once its
140 A more detailed list of changes in this release can be found in the
143 Users interested in using the new QUIC functionality are encouraged to read the
144 [README file for QUIC][README-QUIC.md], which provides links to relevant
145 documentation and example code.
147 As always, bug reports and issues relating to OpenSSL can be [filed on our issue
148 tracker][issue tracker].
153 ### Major changes between OpenSSL 3.2.1 and OpenSSL 3.2.2 [under development]
155 OpenSSL 3.2.2 is a security patch release. The most severe CVE fixed in this
158 This release incorporates the following bug fixes and mitigations:
160 * Fixed unbounded memory growth with session handling in TLSv1.3
163 ### Major changes between OpenSSL 3.2.0 and OpenSSL 3.2.1 [30 Jan 2024]
165 OpenSSL 3.2.1 is a security patch release. The most severe CVE fixed in this
168 This release incorporates the following bug fixes and mitigations:
170 * Fixed PKCS12 Decoding crashes
172 * Fixed excessive time spent checking invalid RSA public keys
174 * Fixed POLY1305 MAC implementation corrupting vector registers on PowerPC
175 CPUs which support PowerISA 2.07
178 ### Major changes between OpenSSL 3.1 and OpenSSL 3.2.0 [23 Nov 2023]
180 OpenSSL 3.2.0 is a feature release adding significant new functionality to
183 This release incorporates the following potentially significant or incompatible
186 * The default SSL/TLS security level has been changed from 1 to 2.
188 * The `x509`, `ca`, and `req` apps now always produce X.509v3 certificates.
190 * Subject or issuer names in X.509 objects are now displayed as UTF-8 strings
191 by default. Also spaces surrounding `=` in DN output are removed.
193 This release adds the following new features:
195 * Support for client side QUIC, including support for
196 multiple streams (RFC 9000)
198 * Support for Ed25519ctx, Ed25519ph and Ed448ph in addition
199 to existing support for Ed25519 and Ed448 (RFC 8032)
201 * Support for deterministic ECDSA signatures (RFC 6979)
203 * Support for AES-GCM-SIV, a nonce-misuse-resistant AEAD (RFC 8452)
205 * Support for the Argon2 KDF, along with supporting thread pool
206 functionality (RFC 9106)
208 * Support for Hybrid Public Key Encryption (HPKE) (RFC 9180)
210 * Support for SM4-XTS
212 * Support for Brainpool curves in TLS 1.3
214 * Support for TLS Raw Public Keys (RFC 7250)
216 * Support for TCP Fast Open on Linux, macOS and FreeBSD,
217 where enabled and supported (RFC 7413)
219 * Support for TLS certificate compression, including library
220 support for zlib, Brotli and zstd (RFC 8879)
222 * Support for provider-based pluggable signature algorithms
223 in TLS 1.3 with supporting CMS and X.509 functionality
225 With a suitable provider this enables the use of post-quantum/quantum-safe
228 * Support for using the Windows system certificate store as a source of
229 trusted root certificates
231 This is not yet enabled by default and must be activated using an
232 environment variable. This is likely to become enabled by default
233 in a future feature release.
235 * Support for using the IANA standard names in TLS ciphersuite configuration
237 * Multiple new features and improvements to CMP protocol support
239 The following known issues are present in this release and will be rectified
242 * Provider-based signature algorithms cannot be configured using the
243 SignatureAlgorithms configuration file parameter (#22761)
245 This release incorporates the following documentation enhancements:
247 * Added multiple tutorials on the OpenSSL library and in particular
248 on writing various clients (using TLS and QUIC protocols) with libssl
252 This release incorporates the following bug fixes and mitigations:
254 * Fixed excessive time spent in DH check / generation with large Q parameter
258 A more detailed list of changes in this release can be found in the
261 Users interested in using the new QUIC functionality are encouraged to read the
262 [README file for QUIC][README-QUIC.md], which provides links to relevant
263 documentation and example code.
265 As always, bug reports and issues relating to OpenSSL can be [filed on our issue
266 tracker][issue tracker].
271 ### Major changes between OpenSSL 3.1.3 and OpenSSL 3.1.4 [24 Oct 2023]
273 * Mitigate incorrect resize handling for symmetric cipher keys and IVs.
276 ### Major changes between OpenSSL 3.1.2 and OpenSSL 3.1.3 [19 Sep 2023]
278 * Fix POLY1305 MAC implementation corrupting XMM registers on Windows
281 ### Major changes between OpenSSL 3.1.1 and OpenSSL 3.1.2 [1 Aug 2023]
283 * Fix excessive time spent checking DH q parameter value ([CVE-2023-3817])
284 * Fix DH_check() excessive time with over sized modulus ([CVE-2023-3446])
285 * Do not ignore empty associated data entries with AES-SIV ([CVE-2023-2975])
286 * When building with the `enable-fips` option and using the resulting
287 FIPS provider, TLS 1.2 will, by default, mandate the use of an
288 extended master secret and the Hash and HMAC DRBGs will not operate
289 with truncated digests.
291 ### Major changes between OpenSSL 3.1.0 and OpenSSL 3.1.1 [30 May 2023]
293 * Mitigate for very slow `OBJ_obj2txt()` performance with gigantic OBJECT
294 IDENTIFIER sub-identities. ([CVE-2023-2650])
295 * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms
297 * Fixed documentation of X509_VERIFY_PARAM_add0_policy() ([CVE-2023-0466])
298 * Fixed handling of invalid certificate policies in leaf certificates
300 * Limited the number of nodes created in a policy tree ([CVE-2023-0464])
302 ### Major changes between OpenSSL 3.0 and OpenSSL 3.1.0 [14 Mar 2023]
304 * SSL 3, TLS 1.0, TLS 1.1, and DTLS 1.0 only work at security level 0.
305 * Performance enhancements and new platform support including new
306 assembler code algorithm implementations.
307 * Deprecated LHASH statistics functions.
308 * FIPS 140-3 compliance changes.
313 ### Major changes between OpenSSL 3.0.7 and OpenSSL 3.0.8 [7 Feb 2023]
315 * Fixed NULL dereference during PKCS7 data verification ([CVE-2023-0401])
316 * Fixed X.400 address type confusion in X.509 GeneralName ([CVE-2023-0286])
317 * Fixed NULL dereference validating DSA public key ([CVE-2023-0217])
318 * Fixed Invalid pointer dereference in d2i_PKCS7 functions ([CVE-2023-0216])
319 * Fixed Use-after-free following BIO_new_NDEF ([CVE-2023-0215])
320 * Fixed Double free after calling PEM_read_bio_ex ([CVE-2022-4450])
321 * Fixed Timing Oracle in RSA Decryption ([CVE-2022-4304])
322 * Fixed X.509 Name Constraints Read Buffer Overflow ([CVE-2022-4203])
323 * Fixed X.509 Policy Constraints Double Locking ([CVE-2022-3996])
325 ### Major changes between OpenSSL 3.0.6 and OpenSSL 3.0.7 [1 Nov 2022]
327 * Added RIPEMD160 to the default provider.
328 * Fixed regressions introduced in 3.0.6 version.
329 * Fixed two buffer overflows in punycode decoding functions.
330 ([CVE-2022-3786]) and ([CVE-2022-3602])
332 ### Major changes between OpenSSL 3.0.5 and OpenSSL 3.0.6 [11 Oct 2022]
334 * Fix for custom ciphers to prevent accidental use of NULL encryption
337 ### Major changes between OpenSSL 3.0.4 and OpenSSL 3.0.5 [5 Jul 2022]
339 * Fixed heap memory corruption with RSA private key operation
341 * Fixed AES OCB failure to encrypt some bytes on 32-bit x86 platforms
344 ### Major changes between OpenSSL 3.0.3 and OpenSSL 3.0.4 [21 Jun 2022]
346 * Fixed additional bugs in the c_rehash script which was not properly
347 sanitising shell metacharacters to prevent command injection
350 ### Major changes between OpenSSL 3.0.2 and OpenSSL 3.0.3 [3 May 2022]
352 * Fixed a bug in the c_rehash script which was not properly sanitising shell
353 metacharacters to prevent command injection ([CVE-2022-1292])
354 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer
355 certificate on an OCSP response ([CVE-2022-1343])
356 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the
357 AAD data as the MAC key ([CVE-2022-1434])
358 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory
359 occupied by the removed hash table entries ([CVE-2022-1473])
361 ### Major changes between OpenSSL 3.0.1 and OpenSSL 3.0.2 [15 Mar 2022]
363 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever
364 for non-prime moduli ([CVE-2022-0778])
366 ### Major changes between OpenSSL 3.0.0 and OpenSSL 3.0.1 [14 Dec 2021]
368 * Fixed invalid handling of X509_verify_cert() internal errors in libssl
370 * Allow fetching an operation from the provider that owns an unexportable key
371 as a fallback if that is still allowed by the property query.
373 ### Major changes between OpenSSL 1.1.1 and OpenSSL 3.0.0 [7 sep 2021]
375 * Enhanced 'openssl list' with many new options.
376 * Added migration guide to man7.
377 * Implemented support for fully "pluggable" TLSv1.3 groups.
378 * Added support for Kernel TLS (KTLS).
379 * Changed the license to the Apache License v2.0.
380 * Moved all variations of the EVP ciphers CAST5, BF, IDEA, SEED, RC2,
381 RC4, RC5, and DES to the legacy provider.
382 * Moved the EVP digests MD2, MD4, MDC2, WHIRLPOOL and RIPEMD-160 to the legacy
384 * Added convenience functions for generating asymmetric key pairs.
385 * Deprecated the `OCSP_REQ_CTX` type and functions.
386 * Deprecated the `EC_KEY` and `EC_KEY_METHOD` types and functions.
387 * Deprecated the `RSA` and `RSA_METHOD` types and functions.
388 * Deprecated the `DSA` and `DSA_METHOD` types and functions.
389 * Deprecated the `DH` and `DH_METHOD` types and functions.
390 * Deprecated the `ERR_load_` functions.
391 * Remove the `RAND_DRBG` API.
392 * Deprecated the `ENGINE` API.
393 * Added `OSSL_LIB_CTX`, a libcrypto library context.
394 * Added various `_ex` functions to the OpenSSL API that support using
395 a non-default `OSSL_LIB_CTX`.
396 * Interactive mode is removed from the 'openssl' program.
397 * The X25519, X448, Ed25519, Ed448, SHAKE128 and SHAKE256 algorithms are
398 included in the FIPS provider.
399 * X509 certificates signed using SHA1 are no longer allowed at security
400 level 1 or higher. The default security level for TLS is 1, so
401 certificates signed using SHA1 are by default no longer trusted to
402 authenticate servers or clients.
403 * enable-crypto-mdebug and enable-crypto-mdebug-backtrace were mostly
404 disabled; the project uses address sanitize/leak-detect instead.
405 * Added a Certificate Management Protocol (CMP, RFC 4210) implementation
406 also covering CRMF (RFC 4211) and HTTP transfer (RFC 6712).
407 It is part of the crypto lib and adds a 'cmp' app with a demo configuration.
408 All widely used CMP features are supported for both clients and servers.
409 * Added a proper HTTP client supporting GET with optional redirection, POST,
410 arbitrary request and response content types, TLS, persistent connections,
411 connections via HTTP(s) proxies, connections and exchange via user-defined
412 BIOs (allowing implicit connections), and timeout checks.
413 * Added util/check-format.pl for checking adherence to the coding guidelines.
414 * Added OSSL_ENCODER, a generic encoder API.
415 * Added OSSL_DECODER, a generic decoder API.
416 * Added OSSL_PARAM_BLD, an easier to use API to OSSL_PARAM.
417 * Added error raising macros, ERR_raise() and ERR_raise_data().
418 * Deprecated ERR_put_error(), ERR_get_error_line(), ERR_get_error_line_data(),
419 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and
420 ERR_func_error_string().
421 * Added OSSL_PROVIDER_available(), to check provider availability.
422 * Added 'openssl mac' that uses the EVP_MAC API.
423 * Added 'openssl kdf' that uses the EVP_KDF API.
424 * Add OPENSSL_info() and 'openssl info' to get built-in data.
425 * Add support for enabling instrumentation through trace and debug
427 * Changed our version number scheme and set the next major release to
429 * Added EVP_MAC, an EVP layer MAC API, and a generic EVP_PKEY to EVP_MAC
430 bridge. Supported MACs are: BLAKE2, CMAC, GMAC, HMAC, KMAC, POLY1305
432 * Removed the heartbeat message in DTLS feature.
433 * Added EVP_KDF, an EVP layer KDF and PRF API, and a generic EVP_PKEY to
434 EVP_KDF bridge. Supported KDFs are: HKDF, KBKDF, KRB5 KDF, PBKDF2,
435 PKCS12 KDF, SCRYPT, SSH KDF, SSKDF, TLS1 PRF, X9.42 KDF and X9.63 KDF.
436 * All of the low-level MD2, MD4, MD5, MDC2, RIPEMD160, SHA1, SHA224,
437 SHA256, SHA384, SHA512 and Whirlpool digest functions have been
439 * All of the low-level AES, Blowfish, Camellia, CAST, DES, IDEA, RC2,
440 RC4, RC5 and SEED cipher functions have been deprecated.
441 * All of the low-level DH, DSA, ECDH, ECDSA and RSA public key functions
442 have been deprecated.
443 * SSL 3, TLS 1.0, TLS 1.1, and DTLS 1.0 only work at security level 0,
444 except when RSA key exchange without SHA1 is used.
445 * Added providers, a new pluggability concept that will replace the
446 ENGINE API and ENGINE implementations.
451 ### Major changes between OpenSSL 1.1.1k and OpenSSL 1.1.1l [24 Aug 2021]
453 * Fixed an SM2 Decryption Buffer Overflow ([CVE-2021-3711])
454 * Fixed various read buffer overruns processing ASN.1 strings ([CVE-2021-3712])
456 ### Major changes between OpenSSL 1.1.1j and OpenSSL 1.1.1k [25 Mar 2021]
458 * Fixed a problem with verifying a certificate chain when using the
459 X509_V_FLAG_X509_STRICT flag ([CVE-2021-3450])
460 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously
461 crafted renegotiation ClientHello message from a client ([CVE-2021-3449])
463 ### Major changes between OpenSSL 1.1.1i and OpenSSL 1.1.1j [16 Feb 2021]
465 * Fixed a NULL pointer deref in the X509_issuer_and_serial_hash()
466 function ([CVE-2021-23841])
467 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING
468 padding mode to correctly check for rollback attacks
469 * Fixed an overflow in the EVP_CipherUpdate, EVP_EncryptUpdate and
470 EVP_DecryptUpdate functions ([CVE-2021-23840])
471 * Fixed SRP_Calc_client_key so that it runs in constant time
473 ### Major changes between OpenSSL 1.1.1h and OpenSSL 1.1.1i [8 Dec 2020]
475 * Fixed NULL pointer deref in GENERAL_NAME_cmp ([CVE-2020-1971])
477 ### Major changes between OpenSSL 1.1.1g and OpenSSL 1.1.1h [22 Sep 2020]
479 * Disallow explicit curve parameters in verifications chains when
480 X509_V_FLAG_X509_STRICT is used
481 * Enable 'MinProtocol' and 'MaxProtocol' to configure both TLS and DTLS
483 * Oracle Developer Studio will start reporting deprecation warnings
485 ### Major changes between OpenSSL 1.1.1f and OpenSSL 1.1.1g [21 Apr 2020]
487 * Fixed segmentation fault in SSL_check_chain() ([CVE-2020-1967])
489 ### Major changes between OpenSSL 1.1.1e and OpenSSL 1.1.1f [31 Mar 2020]
491 * Revert the unexpected EOF reporting via SSL_ERROR_SSL
493 ### Major changes between OpenSSL 1.1.1d and OpenSSL 1.1.1e [17 Mar 2020]
495 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure
496 used in exponentiation with 512-bit moduli ([CVE-2019-1551])
498 ### Major changes between OpenSSL 1.1.1c and OpenSSL 1.1.1d [10 Sep 2019]
500 * Fixed a fork protection issue ([CVE-2019-1549])
501 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
503 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
504 used even when parsing explicit parameters
505 * Compute ECC cofactors if not provided during EC_GROUP construction
507 * Early start up entropy quality from the DEVRANDOM seed source has been
508 improved for older Linux systems
509 * Correct the extended master secret constant on EBCDIC systems
510 * Use Windows installation paths in the mingw builds ([CVE-2019-1552])
511 * Changed DH_check to accept parameters with order q and 2q subgroups
512 * Significantly reduce secure memory usage by the randomness pools
513 * Revert the DEVRANDOM_WAIT feature for Linux systems
515 ### Major changes between OpenSSL 1.1.1b and OpenSSL 1.1.1c [28 May 2019]
517 * Prevent over long nonces in ChaCha20-Poly1305 ([CVE-2019-1543])
519 ### Major changes between OpenSSL 1.1.1a and OpenSSL 1.1.1b [26 Feb 2019]
521 * Change the info callback signals for the start and end of a post-handshake
522 message exchange in TLSv1.3.
523 * Fix a bug in DTLS over SCTP. This breaks interoperability with older
524 versions of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2.
526 ### Major changes between OpenSSL 1.1.1 and OpenSSL 1.1.1a [20 Nov 2018]
528 * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
529 * Timing vulnerability in ECDSA signature generation ([CVE-2018-0735])
531 ### Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.1 [11 Sep 2018]
533 * Support for TLSv1.3 added. The TLSv1.3 implementation includes:
534 * Fully compliant implementation of RFC8446 (TLSv1.3) on by default
536 * Post-handshake authentication and key update
537 * Middlebox Compatibility Mode
539 * Support for all five RFC8446 ciphersuites
540 * RSA-PSS signature algorithms (backported to TLSv1.2)
541 * Configurable session ticket support
542 * Stateless server support
543 * Rewrite of the packet construction code for "safer" packet handling
544 * Rewrite of the extension handling code
545 For further important information, see the [TLS1.3 page](
546 https://wiki.openssl.org/index.php/TLS1.3) in the OpenSSL Wiki.
548 * Complete rewrite of the OpenSSL random number generator to introduce the
549 following capabilities
550 * The default RAND method now utilizes an AES-CTR DRBG according to
551 NIST standard SP 800-90Ar1.
552 * Support for multiple DRBG instances with seed chaining.
553 * There is a public and private DRBG instance.
554 * The DRBG instances are fork-safe.
555 * Keep all global DRBG instances on the secure heap if it is enabled.
556 * The public and private DRBG instance are per thread for lock free
558 * Support for various new cryptographic algorithms including:
560 * SHA512/224 and SHA512/256
561 * EdDSA (both Ed25519 and Ed448) including X509 and TLS support
562 * X448 (adding to the existing X25519 support in 1.1.0)
568 * ARIA (including TLS support)
569 * Significant Side-Channel attack security improvements
570 * Add a new ClientHello callback to provide the ability to adjust the SSL
571 object at an early stage.
572 * Add 'Maximum Fragment Length' TLS extension negotiation and support
573 * A new STORE module, which implements a uniform and URI based reader of
574 stores that can contain keys, certificates, CRLs and numerous other
576 * Move the display of configuration data to configdata.pm.
577 * Allow GNU style "make variables" to be used with Configure.
578 * Claim the namespaces OSSL and OPENSSL, represented as symbol prefixes
579 * Rewrite of devcrypto engine
584 ### Major changes between OpenSSL 1.1.0k and OpenSSL 1.1.0l [10 Sep 2019]
586 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
588 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
589 used even when parsing explicit parameters
590 * Compute ECC cofactors if not provided during EC_GROUP construction
592 * Use Windows installation paths in the mingw builds ([CVE-2019-1552])
594 ### Major changes between OpenSSL 1.1.0j and OpenSSL 1.1.0k [28 May 2019]
596 * Prevent over long nonces in ChaCha20-Poly1305 ([CVE-2019-1543])
598 ### Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.0j [20 Nov 2018]
600 * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
601 * Timing vulnerability in ECDSA signature generation ([CVE-2018-0735])
603 ### Major changes between OpenSSL 1.1.0h and OpenSSL 1.1.0i [14 Aug 2018]
605 * Client DoS due to large DH parameter ([CVE-2018-0732])
606 * Cache timing vulnerability in RSA Key Generation ([CVE-2018-0737])
608 ### Major changes between OpenSSL 1.1.0g and OpenSSL 1.1.0h [27 Mar 2018]
610 * Constructed ASN.1 types with a recursive definition could exceed the
611 stack ([CVE-2018-0739])
612 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC ([CVE-2018-0733])
613 * rsaz_1024_mul_avx2 overflow bug on x86_64 ([CVE-2017-3738])
615 ### Major changes between OpenSSL 1.1.0f and OpenSSL 1.1.0g [2 Nov 2017]
617 * bn_sqrx8x_internal carry bug on x86_64 ([CVE-2017-3736])
618 * Malformed X.509 IPAddressFamily could cause OOB read ([CVE-2017-3735])
620 ### Major changes between OpenSSL 1.1.0e and OpenSSL 1.1.0f [25 May 2017]
622 * config now recognises 64-bit mingw and chooses mingw64 instead of mingw
624 ### Major changes between OpenSSL 1.1.0d and OpenSSL 1.1.0e [16 Feb 2017]
626 * Encrypt-Then-Mac renegotiation crash ([CVE-2017-3733])
628 ### Major changes between OpenSSL 1.1.0c and OpenSSL 1.1.0d [26 Jan 2017]
630 * Truncated packet could crash via OOB read ([CVE-2017-3731])
631 * Bad (EC)DHE parameters cause a client crash ([CVE-2017-3730])
632 * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2017-3732])
634 ### Major changes between OpenSSL 1.1.0b and OpenSSL 1.1.0c [10 Nov 2016]
636 * ChaCha20/Poly1305 heap-buffer-overflow ([CVE-2016-7054])
637 * CMS Null dereference ([CVE-2016-7053])
638 * Montgomery multiplication may produce incorrect results ([CVE-2016-7055])
640 ### Major changes between OpenSSL 1.1.0a and OpenSSL 1.1.0b [26 Sep 2016]
642 * Fix Use After Free for large message sizes ([CVE-2016-6309])
644 ### Major changes between OpenSSL 1.1.0 and OpenSSL 1.1.0a [22 Sep 2016]
646 * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
647 * SSL_peek() hang on empty record ([CVE-2016-6305])
648 * Excessive allocation of memory in tls_get_message_header()
650 * Excessive allocation of memory in dtls1_preprocess_fragment()
653 ### Major changes between OpenSSL 1.0.2h and OpenSSL 1.1.0 [25 Aug 2016]
655 * Copyright text was shrunk to a boilerplate that points to the license
656 * "shared" builds are now the default when possible
657 * Added support for "pipelining"
658 * Added the AFALG engine
659 * New threading API implemented
660 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl
661 * Support for extended master secret
663 * Reworked test suite, now based on perl, Test::Harness and Test::More
664 * *Most* libcrypto and libssl public structures were made opaque,
666 BIGNUM and associated types, EC_KEY and EC_KEY_METHOD,
667 DH and DH_METHOD, DSA and DSA_METHOD, RSA and RSA_METHOD,
668 BIO and BIO_METHOD, EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX,
669 EVP_CIPHER, EVP_PKEY and associated types, HMAC_CTX,
670 X509, X509_CRL, X509_OBJECT, X509_STORE_CTX, X509_STORE,
671 X509_LOOKUP, X509_LOOKUP_METHOD
672 * libssl internal structures made opaque
673 * SSLv2 support removed
674 * Kerberos ciphersuite support removed
675 * RC4 removed from DEFAULT ciphersuites in libssl
676 * 40 and 56 bit cipher support removed from libssl
677 * All public header files moved to include/openssl, no more symlinking
678 * SSL/TLS state machine, version negotiation and record layer rewritten
679 * EC revision: now operations use new EC_KEY_METHOD.
680 * Support for OCB mode added to libcrypto
681 * Support for asynchronous crypto operations added to libcrypto and libssl
682 * Deprecated interfaces can now be disabled at build time either
683 relative to the latest release via the "no-deprecated" Configure
684 argument, or via the "--api=1.1.0|1.0.0|0.9.8" option.
685 * Application software can be compiled with -DOPENSSL_API_COMPAT=version
686 to ensure that features deprecated in that version are not exposed.
687 * Support for RFC6698/RFC7671 DANE TLSA peer authentication
688 * Change of Configure to use --prefix as the main installation
689 directory location rather than --openssldir. The latter becomes
690 the directory for certs, private key and openssl.cnf exclusively.
691 * Reworked BIO networking library, with full support for IPv6.
692 * New "unified" build system
693 * New security levels
694 * Support for scrypt algorithm
696 * Extended SSL_CONF support using configuration files
697 * KDF algorithm support. Implement TLS PRF as a KDF.
698 * Support for Certificate Transparency
704 ### Major changes between OpenSSL 1.0.2s and OpenSSL 1.0.2t [10 Sep 2019]
706 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
708 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
709 used even when parsing explicit parameters
710 * Compute ECC cofactors if not provided during EC_GROUP construction
712 * Document issue with installation paths in diverse Windows builds
715 ### Major changes between OpenSSL 1.0.2r and OpenSSL 1.0.2s [28 May 2019]
719 ### Major changes between OpenSSL 1.0.2q and OpenSSL 1.0.2r [26 Feb 2019]
721 * 0-byte record padding oracle ([CVE-2019-1559])
723 ### Major changes between OpenSSL 1.0.2p and OpenSSL 1.0.2q [20 Nov 2018]
725 * Microarchitecture timing vulnerability in ECC scalar multiplication ([CVE-2018-5407])
726 * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
728 ### Major changes between OpenSSL 1.0.2o and OpenSSL 1.0.2p [14 Aug 2018]
730 * Client DoS due to large DH parameter ([CVE-2018-0732])
731 * Cache timing vulnerability in RSA Key Generation ([CVE-2018-0737])
733 ### Major changes between OpenSSL 1.0.2n and OpenSSL 1.0.2o [27 Mar 2018]
735 * Constructed ASN.1 types with a recursive definition could exceed the
736 stack ([CVE-2018-0739])
738 ### Major changes between OpenSSL 1.0.2m and OpenSSL 1.0.2n [7 Dec 2017]
740 * Read/write after SSL object in error state ([CVE-2017-3737])
741 * rsaz_1024_mul_avx2 overflow bug on x86_64 ([CVE-2017-3738])
743 ### Major changes between OpenSSL 1.0.2l and OpenSSL 1.0.2m [2 Nov 2017]
745 * bn_sqrx8x_internal carry bug on x86_64 ([CVE-2017-3736])
746 * Malformed X.509 IPAddressFamily could cause OOB read ([CVE-2017-3735])
748 ### Major changes between OpenSSL 1.0.2k and OpenSSL 1.0.2l [25 May 2017]
750 * config now recognises 64-bit mingw and chooses mingw64 instead of mingw
752 ### Major changes between OpenSSL 1.0.2j and OpenSSL 1.0.2k [26 Jan 2017]
754 * Truncated packet could crash via OOB read ([CVE-2017-3731])
755 * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2017-3732])
756 * Montgomery multiplication may produce incorrect results ([CVE-2016-7055])
758 ### Major changes between OpenSSL 1.0.2i and OpenSSL 1.0.2j [26 Sep 2016]
760 * Missing CRL sanity check ([CVE-2016-7052])
762 ### Major changes between OpenSSL 1.0.2h and OpenSSL 1.0.2i [22 Sep 2016]
764 * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
765 * SWEET32 Mitigation ([CVE-2016-2183])
766 * OOB write in MDC2_Update() ([CVE-2016-6303])
767 * Malformed SHA512 ticket DoS ([CVE-2016-6302])
768 * OOB write in BN_bn2dec() ([CVE-2016-2182])
769 * OOB read in TS_OBJ_print_bio() ([CVE-2016-2180])
770 * Pointer arithmetic undefined behaviour ([CVE-2016-2177])
771 * Constant time flag not preserved in DSA signing ([CVE-2016-2178])
772 * DTLS buffered message DoS ([CVE-2016-2179])
773 * DTLS replay protection DoS ([CVE-2016-2181])
774 * Certificate message OOB reads ([CVE-2016-6306])
776 ### Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
778 * Prevent padding oracle in AES-NI CBC MAC check ([CVE-2016-2107])
779 * Fix EVP_EncodeUpdate overflow ([CVE-2016-2105])
780 * Fix EVP_EncryptUpdate overflow ([CVE-2016-2106])
781 * Prevent ASN.1 BIO excessive memory allocation ([CVE-2016-2109])
782 * EBCDIC overread ([CVE-2016-2176])
783 * Modify behavior of ALPN to invoke callback after SNI/servername
784 callback, such that updates to the SSL_CTX affect ALPN.
785 * Remove LOW from the DEFAULT cipher list. This removes singles DES from
787 * Only remove the SSLv2 methods with the no-ssl2-method option.
789 ### Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
791 * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
792 * Disable SSLv2 default build, default negotiation and weak ciphers
794 * Fix a double-free in DSA code ([CVE-2016-0705])
795 * Disable SRP fake user seed to address a server memory leak
797 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
799 * Fix memory issues in BIO_*printf functions ([CVE-2016-0799])
800 * Fix side channel attack on modular exponentiation ([CVE-2016-0702])
802 ### Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
804 * DH small subgroups ([CVE-2016-0701])
805 * SSLv2 doesn't block disabled ciphers ([CVE-2015-3197])
807 ### Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
809 * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2015-3193])
810 * Certificate verify crash with missing PSS parameter ([CVE-2015-3194])
811 * X509_ATTRIBUTE memory leak ([CVE-2015-3195])
812 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
813 * In DSA_generate_parameters_ex, if the provided seed is too short,
816 ### Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
818 * Alternate chains certificate forgery ([CVE-2015-1793])
819 * Race condition handling PSK identify hint ([CVE-2015-3196])
821 ### Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
823 * Fix HMAC ABI incompatibility
825 ### Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
827 * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
828 * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
829 * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
830 * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
831 * Race condition handling NewSessionTicket ([CVE-2015-1791])
833 ### Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
835 * OpenSSL 1.0.2 ClientHello sigalgs DoS fix ([CVE-2015-0291])
836 * Multiblock corrupted pointer fix ([CVE-2015-0290])
837 * Segmentation fault in DTLSv1_listen fix ([CVE-2015-0207])
838 * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
839 * Segmentation fault for invalid PSS parameters fix ([CVE-2015-0208])
840 * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
841 * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
842 * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
843 * Empty CKE with client auth and DHE fix ([CVE-2015-1787])
844 * Handshake with unseeded PRNG fix ([CVE-2015-0285])
845 * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
846 * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
847 * Removed the export ciphers from the DEFAULT ciphers
849 ### Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]
851 * Suite B support for TLS 1.2 and DTLS 1.2
852 * Support for DTLS 1.2
853 * TLS automatic EC curve selection.
854 * API to set TLS supported signature algorithms and curves
855 * SSL_CONF configuration API.
856 * TLS Brainpool support.
858 * CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
863 ### Major changes between OpenSSL 1.0.1t and OpenSSL 1.0.1u [22 Sep 2016]
865 * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
866 * SWEET32 Mitigation ([CVE-2016-2183])
867 * OOB write in MDC2_Update() ([CVE-2016-6303])
868 * Malformed SHA512 ticket DoS ([CVE-2016-6302])
869 * OOB write in BN_bn2dec() ([CVE-2016-2182])
870 * OOB read in TS_OBJ_print_bio() ([CVE-2016-2180])
871 * Pointer arithmetic undefined behaviour ([CVE-2016-2177])
872 * Constant time flag not preserved in DSA signing ([CVE-2016-2178])
873 * DTLS buffered message DoS ([CVE-2016-2179])
874 * DTLS replay protection DoS ([CVE-2016-2181])
875 * Certificate message OOB reads ([CVE-2016-6306])
877 ### Major changes between OpenSSL 1.0.1s and OpenSSL 1.0.1t [3 May 2016]
879 * Prevent padding oracle in AES-NI CBC MAC check ([CVE-2016-2107])
880 * Fix EVP_EncodeUpdate overflow ([CVE-2016-2105])
881 * Fix EVP_EncryptUpdate overflow ([CVE-2016-2106])
882 * Prevent ASN.1 BIO excessive memory allocation ([CVE-2016-2109])
883 * EBCDIC overread ([CVE-2016-2176])
884 * Modify behavior of ALPN to invoke callback after SNI/servername
885 callback, such that updates to the SSL_CTX affect ALPN.
886 * Remove LOW from the DEFAULT cipher list. This removes singles DES from
888 * Only remove the SSLv2 methods with the no-ssl2-method option.
890 ### Major changes between OpenSSL 1.0.1r and OpenSSL 1.0.1s [1 Mar 2016]
892 * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
893 * Disable SSLv2 default build, default negotiation and weak ciphers
895 * Fix a double-free in DSA code ([CVE-2016-0705])
896 * Disable SRP fake user seed to address a server memory leak
898 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
900 * Fix memory issues in BIO_*printf functions ([CVE-2016-0799])
901 * Fix side channel attack on modular exponentiation ([CVE-2016-0702])
903 ### Major changes between OpenSSL 1.0.1q and OpenSSL 1.0.1r [28 Jan 2016]
905 * Protection for DH small subgroup attacks
906 * SSLv2 doesn't block disabled ciphers ([CVE-2015-3197])
908 ### Major changes between OpenSSL 1.0.1p and OpenSSL 1.0.1q [3 Dec 2015]
910 * Certificate verify crash with missing PSS parameter ([CVE-2015-3194])
911 * X509_ATTRIBUTE memory leak ([CVE-2015-3195])
912 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
913 * In DSA_generate_parameters_ex, if the provided seed is too short,
916 ### Major changes between OpenSSL 1.0.1o and OpenSSL 1.0.1p [9 Jul 2015]
918 * Alternate chains certificate forgery ([CVE-2015-1793])
919 * Race condition handling PSK identify hint ([CVE-2015-3196])
921 ### Major changes between OpenSSL 1.0.1n and OpenSSL 1.0.1o [12 Jun 2015]
923 * Fix HMAC ABI incompatibility
925 ### Major changes between OpenSSL 1.0.1m and OpenSSL 1.0.1n [11 Jun 2015]
927 * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
928 * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
929 * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
930 * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
931 * Race condition handling NewSessionTicket ([CVE-2015-1791])
933 ### Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.1m [19 Mar 2015]
935 * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
936 * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
937 * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
938 * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
939 * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
940 * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
941 * Removed the export ciphers from the DEFAULT ciphers
943 ### Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
945 * Build fixes for the Windows and OpenVMS platforms
947 ### Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
949 * Fix for [CVE-2014-3571]
950 * Fix for [CVE-2015-0206]
951 * Fix for [CVE-2014-3569]
952 * Fix for [CVE-2014-3572]
953 * Fix for [CVE-2015-0204]
954 * Fix for [CVE-2015-0205]
955 * Fix for [CVE-2014-8275]
956 * Fix for [CVE-2014-3570]
958 ### Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
960 * Fix for [CVE-2014-3513]
961 * Fix for [CVE-2014-3567]
962 * Mitigation for [CVE-2014-3566] (SSL protocol vulnerability)
963 * Fix for [CVE-2014-3568]
965 ### Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
967 * Fix for [CVE-2014-3512]
968 * Fix for [CVE-2014-3511]
969 * Fix for [CVE-2014-3510]
970 * Fix for [CVE-2014-3507]
971 * Fix for [CVE-2014-3506]
972 * Fix for [CVE-2014-3505]
973 * Fix for [CVE-2014-3509]
974 * Fix for [CVE-2014-5139]
975 * Fix for [CVE-2014-3508]
977 ### Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
979 * Fix for [CVE-2014-0224]
980 * Fix for [CVE-2014-0221]
981 * Fix for [CVE-2014-0198]
982 * Fix for [CVE-2014-0195]
983 * Fix for [CVE-2014-3470]
984 * Fix for [CVE-2010-5298]
986 ### Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
988 * Fix for [CVE-2014-0160]
989 * Add TLS padding extension workaround for broken servers.
990 * Fix for [CVE-2014-0076]
992 ### Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
994 * Don't include gmt_unix_time in TLS server and client random values
995 * Fix for TLS record tampering bug ([CVE-2013-4353])
996 * Fix for TLS version checking bug ([CVE-2013-6449])
997 * Fix for DTLS retransmission bug ([CVE-2013-6450])
999 ### Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]
1001 * Corrected fix for ([CVE-2013-0169])
1003 ### Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]
1005 * Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
1006 * Include the fips configuration module.
1007 * Fix OCSP bad key DoS attack ([CVE-2013-0166])
1008 * Fix for SSL/TLS/DTLS CBC plaintext recovery attack ([CVE-2013-0169])
1009 * Fix for TLS AESNI record handling flaw ([CVE-2012-2686])
1011 ### Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]
1013 * Fix TLS/DTLS record length checking bug ([CVE-2012-2333])
1014 * Don't attempt to use non-FIPS composite ciphers in FIPS mode.
1016 ### Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]
1018 * Fix compilation error on non-x86 platforms.
1019 * Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
1020 * Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
1022 ### Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]
1024 * Fix for ASN1 overflow bug ([CVE-2012-2110])
1025 * Workarounds for some servers that hang on long client hellos.
1026 * Fix SEGV in AES code.
1028 ### Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]
1030 * TLS/DTLS heartbeat support.
1032 * RFC 5705 TLS key material exporter.
1033 * RFC 5764 DTLS-SRTP negotiation.
1034 * Next Protocol Negotiation.
1035 * PSS signatures in certificates, requests and CRLs.
1036 * Support for password based recipient info for CMS.
1037 * Support TLS v1.2 and TLS v1.1.
1038 * Preliminary FIPS capability for unvalidated 2.0 FIPS module.
1044 ### Major changes between OpenSSL 1.0.0s and OpenSSL 1.0.0t [3 Dec 2015]
1046 * X509_ATTRIBUTE memory leak (([CVE-2015-3195]))
1047 * Race condition handling PSK identify hint ([CVE-2015-3196])
1049 ### Major changes between OpenSSL 1.0.0r and OpenSSL 1.0.0s [11 Jun 2015]
1051 * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
1052 * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
1053 * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
1054 * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
1055 * Race condition handling NewSessionTicket ([CVE-2015-1791])
1057 ### Major changes between OpenSSL 1.0.0q and OpenSSL 1.0.0r [19 Mar 2015]
1059 * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
1060 * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
1061 * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
1062 * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
1063 * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
1064 * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
1065 * Removed the export ciphers from the DEFAULT ciphers
1067 ### Major changes between OpenSSL 1.0.0p and OpenSSL 1.0.0q [15 Jan 2015]
1069 * Build fixes for the Windows and OpenVMS platforms
1071 ### Major changes between OpenSSL 1.0.0o and OpenSSL 1.0.0p [8 Jan 2015]
1073 * Fix for [CVE-2014-3571]
1074 * Fix for [CVE-2015-0206]
1075 * Fix for [CVE-2014-3569]
1076 * Fix for [CVE-2014-3572]
1077 * Fix for [CVE-2015-0204]
1078 * Fix for [CVE-2015-0205]
1079 * Fix for [CVE-2014-8275]
1080 * Fix for [CVE-2014-3570]
1082 ### Major changes between OpenSSL 1.0.0n and OpenSSL 1.0.0o [15 Oct 2014]
1084 * Fix for [CVE-2014-3513]
1085 * Fix for [CVE-2014-3567]
1086 * Mitigation for [CVE-2014-3566] (SSL protocol vulnerability)
1087 * Fix for [CVE-2014-3568]
1089 ### Major changes between OpenSSL 1.0.0m and OpenSSL 1.0.0n [6 Aug 2014]
1091 * Fix for [CVE-2014-3510]
1092 * Fix for [CVE-2014-3507]
1093 * Fix for [CVE-2014-3506]
1094 * Fix for [CVE-2014-3505]
1095 * Fix for [CVE-2014-3509]
1096 * Fix for [CVE-2014-3508]
1098 Known issues in OpenSSL 1.0.0m:
1100 * EAP-FAST and other applications using tls_session_secret_cb
1101 won't resume sessions. Fixed in 1.0.0n-dev
1102 * Compilation failure of s3_pkt.c on some platforms due to missing
1103 `<limits.h>` include. Fixed in 1.0.0n-dev
1105 ### Major changes between OpenSSL 1.0.0l and OpenSSL 1.0.0m [5 Jun 2014]
1107 * Fix for [CVE-2014-0224]
1108 * Fix for [CVE-2014-0221]
1109 * Fix for [CVE-2014-0198]
1110 * Fix for [CVE-2014-0195]
1111 * Fix for [CVE-2014-3470]
1112 * Fix for [CVE-2014-0076]
1113 * Fix for [CVE-2010-5298]
1115 ### Major changes between OpenSSL 1.0.0k and OpenSSL 1.0.0l [6 Jan 2014]
1117 * Fix for DTLS retransmission bug ([CVE-2013-6450])
1119 ### Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]
1121 * Fix for SSL/TLS/DTLS CBC plaintext recovery attack ([CVE-2013-0169])
1122 * Fix OCSP bad key DoS attack ([CVE-2013-0166])
1124 ### Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]
1126 * Fix DTLS record length checking bug ([CVE-2012-2333])
1128 ### Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]
1130 * Fix for ASN1 overflow bug ([CVE-2012-2110])
1132 ### Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]
1134 * Fix for CMS/PKCS#7 MMA ([CVE-2012-0884])
1135 * Corrected fix for ([CVE-2011-4619])
1136 * Various DTLS fixes.
1138 ### Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]
1140 * Fix for DTLS DoS issue ([CVE-2012-0050])
1142 ### Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]
1144 * Fix for DTLS plaintext recovery attack ([CVE-2011-4108])
1145 * Clear block padding bytes of SSL 3.0 records ([CVE-2011-4576])
1146 * Only allow one SGC handshake restart for SSL/TLS ([CVE-2011-4619])
1147 * Check parameters are not NULL in GOST ENGINE ([CVE-2012-0027])
1148 * Check for malformed RFC3779 data ([CVE-2011-4577])
1150 ### Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]
1152 * Fix for CRL vulnerability issue ([CVE-2011-3207])
1153 * Fix for ECDH crashes ([CVE-2011-3210])
1154 * Protection against EC timing attacks.
1155 * Support ECDH ciphersuites for certificates using SHA2 algorithms.
1156 * Various DTLS fixes.
1158 ### Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]
1160 * Fix for security issue ([CVE-2011-0014])
1162 ### Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]
1164 * Fix for security issue ([CVE-2010-4180])
1165 * Fix for ([CVE-2010-4252])
1166 * Fix mishandling of absent EC point format extension.
1167 * Fix various platform compilation issues.
1168 * Corrected fix for security issue ([CVE-2010-3864]).
1170 ### Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]
1172 * Fix for security issue ([CVE-2010-3864]).
1173 * Fix for ([CVE-2010-2939])
1174 * Fix WIN32 build system for GOST ENGINE.
1176 ### Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]
1178 * Fix for security issue ([CVE-2010-1633]).
1179 * GOST MAC and CFB fixes.
1181 ### Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]
1183 * RFC3280 path validation: sufficient to process PKITS tests.
1184 * Integrated support for PVK files and keyblobs.
1185 * Change default private key format to PKCS#8.
1186 * CMS support: able to process all examples in RFC4134
1187 * Streaming ASN1 encode support for PKCS#7 and CMS.
1188 * Multiple signer and signer add support for PKCS#7 and CMS.
1189 * ASN1 printing support.
1190 * Whirlpool hash algorithm added.
1191 * RFC3161 time stamp support.
1192 * New generalised public key API supporting ENGINE based algorithms.
1193 * New generalised public key API utilities.
1194 * New ENGINE supporting GOST algorithms.
1195 * SSL/TLS GOST ciphersuite support.
1196 * PKCS#7 and CMS GOST support.
1197 * RFC4279 PSK ciphersuite support.
1198 * Supported points format extension for ECC ciphersuites.
1199 * ecdsa-with-SHA224/256/384/512 signature types.
1200 * dsa-with-SHA224 and dsa-with-SHA256 signature types.
1201 * Opaque PRF Input TLS extension support.
1202 * Updated time routines to avoid OS limitations.
1207 ### Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]
1209 * CFB cipher definition fixes.
1210 * Fix security issues [CVE-2010-0740] and [CVE-2010-0433].
1212 ### Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]
1214 * Cipher definition fixes.
1215 * Workaround for slow RAND_poll() on some WIN32 versions.
1216 * Remove MD2 from algorithm tables.
1217 * SPKAC handling fixes.
1218 * Support for RFC5746 TLS renegotiation extension.
1219 * Compression memory leak fixed.
1220 * Compression session resumption fixed.
1221 * Ticket and SNI coexistence fixes.
1222 * Many fixes to DTLS handling.
1224 ### Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]
1226 * Temporary work around for [CVE-2009-3555]: disable renegotiation.
1228 ### Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]
1230 * Fix various build issues.
1231 * Fix security issues [CVE-2009-0590], [CVE-2009-0591], [CVE-2009-0789]
1233 ### Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]
1235 * Fix security issue ([CVE-2008-5077])
1236 * Merge FIPS 140-2 branch code.
1238 ### Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]
1240 * CryptoAPI ENGINE support.
1241 * Various precautionary measures.
1242 * Fix for bugs affecting certificate request creation.
1243 * Support for local machine keyset attribute in PKCS#12 files.
1245 ### Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]
1247 * Backport of CMS functionality to 0.9.8.
1248 * Fixes for bugs introduced with 0.9.8f.
1250 ### Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]
1252 * Add gcc 4.2 support.
1253 * Add support for AES and SSE2 assembly language optimization
1255 * Support for RFC4507bis and server name extensions if explicitly
1256 selected at compile time.
1257 * DTLS improvements.
1258 * RFC4507bis support.
1259 * TLS Extensions support.
1261 ### Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]
1263 * Various ciphersuite selection fixes.
1266 ### Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]
1268 * Introduce limits to prevent malicious key DoS ([CVE-2006-2940])
1269 * Fix security issues [CVE-2006-2937], [CVE-2006-3737], [CVE-2006-4343]
1270 * Changes to ciphersuite selection algorithm
1272 ### Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]
1274 * Fix Daniel Bleichenbacher forged signature attack, [CVE-2006-4339]
1275 * New cipher Camellia
1277 ### Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]
1279 * Cipher string fixes.
1280 * Fixes for VC++ 2005.
1281 * Updated ECC cipher suite support.
1282 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
1283 * Zlib compression usage fixes.
1284 * Built in dynamic engine compilation support on Win32.
1285 * Fixes auto dynamic engine loading in Win32.
1287 ### Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]
1289 * Fix potential SSL 2.0 rollback ([CVE-2005-2969])
1290 * Extended Windows CE support
1292 ### Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]
1294 * Major work on the BIGNUM library for higher efficiency and to
1295 make operations more streamlined and less contradictory. This
1296 is the result of a major audit of the BIGNUM library.
1297 * Addition of BIGNUM functions for fields GF(2^m) and NIST
1298 curves, to support the Elliptic Crypto functions.
1299 * Major work on Elliptic Crypto; ECDH and ECDSA added, including
1300 the use through EVP, X509 and ENGINE.
1301 * New ASN.1 mini-compiler that's usable through the OpenSSL
1303 * Added support for ASN.1 indefinite length constructed encoding.
1304 * New PKCS#12 'medium level' API to manipulate PKCS#12 files.
1305 * Complete rework of shared library construction and linking
1306 programs with shared or static libraries, through a separate
1308 * Rework of the passing of parameters from one Makefile to another.
1309 * Changed ENGINE framework to load dynamic engine modules
1310 automatically from specifically given directories.
1311 * New structure and ASN.1 functions for CertificatePair.
1312 * Changed the ZLIB compression method to be stateful.
1313 * Changed the key-generation and primality testing "progress"
1314 mechanism to take a structure that contains the ticker
1315 function and an argument.
1316 * New engine module: GMP (performs private key exponentiation).
1317 * New engine module: VIA PadLOck ACE extension in VIA C3
1318 Nehemiah processors.
1319 * Added support for IPv6 addresses in certificate extensions.
1320 See RFC 1884, section 2.2.
1321 * Added support for certificate policy mappings, policy
1322 constraints and name constraints.
1323 * Added support for multi-valued AVAs in the OpenSSL
1325 * Added support for multiple certificates with the same subject
1326 in the 'openssl ca' index file.
1327 * Make it possible to create self-signed certificates using
1328 'openssl ca -selfsign'.
1329 * Make it possible to generate a serial number file with
1330 'openssl ca -create_serial'.
1331 * New binary search functions with extended functionality.
1332 * New BUF functions.
1333 * New STORE structure and library to provide an interface to all
1334 sorts of data repositories. Supports storage of public and
1335 private keys, certificates, CRLs, numbers and arbitrary blobs.
1336 This library is unfortunately unfinished and unused within
1338 * New control functions for the error stack.
1339 * Changed the PKCS#7 library to support one-pass S/MIME
1341 * Added the possibility to compile without old deprecated
1342 functionality with the OPENSSL_NO_DEPRECATED macro or the
1343 'no-deprecated' argument to the config and Configure scripts.
1344 * Constification of all ASN.1 conversion functions, and other
1346 * Improved platform support for PowerPC.
1347 * New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
1348 * New X509_VERIFY_PARAM structure to support parameterisation
1349 of X.509 path validation.
1350 * Major overhaul of RC4 performance on Intel P4, IA-64 and
1352 * Changed the Configure script to have some algorithms disabled
1353 by default. Those can be explicitly enabled with the new
1354 argument form 'enable-xxx'.
1355 * Change the default digest in 'openssl' commands from MD5 to
1357 * Added support for DTLS.
1358 * New BIGNUM blinding.
1359 * Added support for the RSA-PSS encryption scheme
1360 * Added support for the RSA X.931 padding.
1361 * Added support for BSD sockets on NetWare.
1362 * Added support for files larger than 2GB.
1363 * Added initial support for Win64.
1364 * Added alternate pkg-config files.
1366 ### Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]
1368 * FIPS 1.1.1 module linking.
1369 * Various ciphersuite selection fixes.
1371 ### Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]
1373 * Introduce limits to prevent malicious key DoS ([CVE-2006-2940])
1374 * Fix security issues [CVE-2006-2937], [CVE-2006-3737], [CVE-2006-4343]
1376 ### Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]
1378 * Fix Daniel Bleichenbacher forged signature attack, [CVE-2006-4339]
1380 ### Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]
1382 * Visual C++ 2005 fixes.
1383 * Update Windows build system for FIPS.
1385 ### Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]
1387 * Give EVP_MAX_MD_SIZE its old value, except for a FIPS build.
1389 ### Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]
1391 * Fix SSL 2.0 Rollback ([CVE-2005-2969])
1392 * Allow use of fixed-length exponent on DSA signing
1393 * Default fixed-window RSA, DSA, DH private-key operations
1395 ### Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]
1397 * More compilation issues fixed.
1398 * Adaptation to more modern Kerberos API.
1399 * Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
1400 * Enhanced x86_64 assembler BIGNUM module.
1401 * More constification.
1402 * Added processing of proxy certificates (RFC 3820).
1404 ### Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]
1406 * Several compilation issues fixed.
1407 * Many memory allocation failure checks added.
1408 * Improved comparison of X509 Name type.
1409 * Mandatory basic checks on certificates.
1410 * Performance improvements.
1412 ### Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]
1414 * Fix race condition in CRL checking code.
1415 * Fixes to PKCS#7 (S/MIME) code.
1417 ### Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]
1419 * Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
1420 * Security: Fix null-pointer assignment in do_change_cipher_spec()
1421 * Allow multiple active certificates with same subject in CA index
1422 * Multiple X509 verification fixes
1423 * Speed up HMAC and other operations
1425 ### Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]
1427 * Security: fix various ASN1 parsing bugs.
1428 * New -ignore_err option to OCSP utility.
1429 * Various interop and bug fixes in S/MIME code.
1430 * SSL/TLS protocol fix for unrequested client certificates.
1432 ### Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]
1434 * Security: counter the Klima-Pokorny-Rosa extension of
1435 Bleichbacher's attack
1436 * Security: make RSA blinding default.
1437 * Configuration: Irix fixes, AIX fixes, better mingw support.
1438 * Support for new platforms: linux-ia64-ecc.
1439 * Build: shared library support fixes.
1440 * ASN.1: treat domainComponent correctly.
1441 * Documentation: fixes and additions.
1443 ### Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]
1445 * Security: Important security related bugfixes.
1446 * Enhanced compatibility with MIT Kerberos.
1447 * Can be built without the ENGINE framework.
1448 * IA32 assembler enhancements.
1449 * Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
1450 * Configuration: the no-err option now works properly.
1451 * SSL/TLS: now handles manual certificate chain building.
1452 * SSL/TLS: certain session ID malfunctions corrected.
1454 ### Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]
1456 * New library section OCSP.
1457 * Complete rewrite of ASN1 code.
1458 * CRL checking in verify code and openssl utility.
1459 * Extension copying in 'ca' utility.
1460 * Flexible display options in 'ca' utility.
1461 * Provisional support for international characters with UTF8.
1462 * Support for external crypto devices ('engine') is no longer
1463 a separate distribution.
1464 * New elliptic curve library section.
1465 * New AES (Rijndael) library section.
1466 * Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
1467 Linux x86_64, Linux 64-bit on Sparc v9
1468 * Extended support for some platforms: VxWorks
1469 * Enhanced support for shared libraries.
1470 * Now only builds PIC code when shared library support is requested.
1471 * Support for pkg-config.
1472 * Lots of new manuals.
1473 * Makes symbolic links to or copies of manuals to cover all described
1475 * Change DES API to clean up the namespace (some applications link also
1476 against libdes providing similar functions having the same name).
1477 Provide macros for backward compatibility (will be removed in the
1479 * Unify handling of cryptographic algorithms (software and engine)
1480 to be available via EVP routines for asymmetric and symmetric ciphers.
1481 * NCONF: new configuration handling routines.
1482 * Change API to use more 'const' modifiers to improve error checking
1483 and help optimizers.
1484 * Finally remove references to RSAref.
1485 * Reworked parts of the BIGNUM code.
1486 * Support for new engines: Broadcom ubsec, Accelerated Encryption
1487 Processing, IBM 4758.
1488 * A few new engines added in the demos area.
1489 * Extended and corrected OID (object identifier) table.
1490 * PRNG: query at more locations for a random device, automatic query for
1491 EGD style random sources at several locations.
1492 * SSL/TLS: allow optional cipher choice according to server's preference.
1493 * SSL/TLS: allow server to explicitly set new session ids.
1494 * SSL/TLS: support Kerberos cipher suites (RFC2712).
1495 Only supports MIT Kerberos for now.
1496 * SSL/TLS: allow more precise control of renegotiations and sessions.
1497 * SSL/TLS: add callback to retrieve SSL/TLS messages.
1498 * SSL/TLS: support AES cipher suites (RFC3268).
1500 ### Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]
1502 * Security: fix various ASN1 parsing bugs.
1503 * SSL/TLS protocol fix for unrequested client certificates.
1505 ### Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]
1507 * Security: counter the Klima-Pokorny-Rosa extension of
1508 Bleichbacher's attack
1509 * Security: make RSA blinding default.
1510 * Build: shared library support fixes.
1512 ### Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]
1514 * Important security related bugfixes.
1516 ### Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]
1518 * New configuration targets for Tandem OSS and A/UX.
1519 * New OIDs for Microsoft attributes.
1520 * Better handling of SSL session caching.
1521 * Better comparison of distinguished names.
1522 * Better handling of shared libraries in a mixed GNU/non-GNU environment.
1523 * Support assembler code with Borland C.
1524 * Fixes for length problems.
1525 * Fixes for uninitialised variables.
1526 * Fixes for memory leaks, some unusual crashes and some race conditions.
1527 * Fixes for smaller building problems.
1528 * Updates of manuals, FAQ and other instructive documents.
1530 ### Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]
1532 * Important building fixes on Unix.
1534 ### Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]
1536 * Various important bugfixes.
1538 ### Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]
1540 * Important security related bugfixes.
1541 * Various SSL/TLS library bugfixes.
1543 ### Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]
1545 * Various SSL/TLS library bugfixes.
1546 * Fix DH parameter generation for 'non-standard' generators.
1548 ### Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]
1550 * Various SSL/TLS library bugfixes.
1551 * BIGNUM library fixes.
1552 * RSA OAEP and random number generation fixes.
1553 * Object identifiers corrected and added.
1554 * Add assembler BN routines for IA64.
1555 * Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
1556 MIPS Linux; shared library support for Irix, HP-UX.
1557 * Add crypto accelerator support for AEP, Baltimore SureWare,
1558 Broadcom and Cryptographic Appliance's keyserver
1559 [in 0.9.6c-engine release].
1561 ### Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]
1563 * Security fix: PRNG improvements.
1564 * Security fix: RSA OAEP check.
1565 * Security fix: Reinsert and fix countermeasure to Bleichbacher's
1567 * MIPS bug fix in BIGNUM.
1568 * Bug fix in "openssl enc".
1569 * Bug fix in X.509 printing routine.
1570 * Bug fix in DSA verification routine and DSA S/MIME verification.
1571 * Bug fix to make PRNG thread-safe.
1572 * Bug fix in RAND_file_name().
1573 * Bug fix in compatibility mode trust settings.
1574 * Bug fix in blowfish EVP.
1575 * Increase default size for BIO buffering filter.
1576 * Compatibility fixes in some scripts.
1578 ### Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]
1580 * Security fix: change behavior of OpenSSL to avoid using
1581 environment variables when running as root.
1582 * Security fix: check the result of RSA-CRT to reduce the
1583 possibility of deducing the private key from an incorrectly
1584 calculated signature.
1585 * Security fix: prevent Bleichenbacher's DSA attack.
1586 * Security fix: Zero the premaster secret after deriving the
1587 master secret in DH ciphersuites.
1588 * Reimplement SSL_peek(), which had various problems.
1589 * Compatibility fix: the function des_encrypt() renamed to
1590 des_encrypt1() to avoid clashes with some Unixen libc.
1591 * Bug fixes for Win32, HP/UX and Irix.
1592 * Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
1593 memory checking routines.
1594 * Bug fixes for RSA operations in threaded environments.
1595 * Bug fixes in misc. openssl applications.
1596 * Remove a few potential memory leaks.
1597 * Add tighter checks of BIGNUM routines.
1598 * Shared library support has been reworked for generality.
1599 * More documentation.
1600 * New function BN_rand_range().
1601 * Add "-rand" option to openssl s_client and s_server.
1603 ### Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]
1605 * Some documentation for BIO and SSL libraries.
1606 * Enhanced chain verification using key identifiers.
1607 * New sign and verify options to 'dgst' application.
1608 * Support for DER and PEM encoded messages in 'smime' application.
1609 * New 'rsautl' application, low-level RSA utility.
1611 * Bugfix for SSL rollback padding check.
1612 * Support for external crypto devices [1].
1613 * Enhanced EVP interface.
1615 [1] The support for external crypto devices is currently a separate
1616 distribution. See the file README-Engine.md.
1618 ### Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]
1620 * Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
1621 * Shared library support for HPUX and Solaris-gcc
1622 * Support of Linux/IA64
1623 * Assembler support for Mingw32
1624 * New 'rand' application
1625 * New way to check for existence of algorithms from scripts
1627 ### Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]
1629 * S/MIME support in new 'smime' command
1630 * Documentation for the OpenSSL command line application
1631 * Automation of 'req' application
1632 * Fixes to make s_client, s_server work under Windows
1633 * Support for multiple fieldnames in SPKACs
1634 * New SPKAC command line utility and associated library functions
1635 * Options to allow passwords to be obtained from various sources
1636 * New public key PEM format and options to handle it
1637 * Many other fixes and enhancements to command line utilities
1638 * Usable certificate chain verification
1639 * Certificate purpose checking
1640 * Certificate trust settings
1641 * Support of authority information access extension
1642 * Extensions in certificate requests
1643 * Simplified X509 name and attribute routines
1644 * Initial (incomplete) support for international character sets
1645 * New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
1646 * Read only memory BIOs and simplified creation function
1647 * TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
1648 record; allow fragmentation and interleaving of handshake and other
1650 * TLS/SSL code now "tolerates" MS SGC
1651 * Work around for Netscape client certificate hang bug
1652 * RSA_NULL option that removes RSA patent code but keeps other
1654 * Memory leak detection now allows applications to add extra information
1655 via a per-thread stack
1656 * PRNG robustness improved
1658 * BIGNUM library bug fixes
1659 * Faster DSA parameter generation
1660 * Enhanced support for Alpha Linux
1661 * Experimental macOS support
1663 ### Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]
1665 * Transparent support for PKCS#8 format private keys: these are used
1666 by several software packages and are more secure than the standard
1668 * PKCS#5 v2.0 implementation
1669 * Password callbacks have a new void * argument for application data
1670 * Avoid various memory leaks
1671 * New pipe-like BIO that allows using the SSL library when actual I/O
1672 must be handled by the application (BIO pair)
1674 ### Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]
1676 * Lots of enhancements and cleanups to the Configuration mechanism
1677 * RSA OEAP related fixes
1678 * Added "openssl ca -revoke" option for revoking a certificate
1679 * Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
1680 * Source tree cleanups: removed lots of obsolete files
1681 * Thawte SXNet, certificate policies and CRL distribution points
1683 * Preliminary (experimental) S/MIME support
1684 * Support for ASN.1 UTF8String and VisibleString
1685 * Full integration of PKCS#12 code
1686 * Sparc assembler bignum implementation, optimized hash functions
1687 * Option to disable selected ciphers
1689 ### Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]
1691 * Fixed a security hole related to session resumption
1692 * Fixed RSA encryption routines for the p < q case
1693 * "ALL" in cipher lists now means "everything except NULL ciphers"
1694 * Support for Triple-DES CBCM cipher
1695 * Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
1696 * First support for new TLSv1 ciphers
1697 * Added a few new BIOs (syslog BIO, reliable BIO)
1698 * Extended support for DSA certificate/keys.
1699 * Extended support for Certificate Signing Requests (CSR)
1700 * Initial support for X.509v3 extensions
1701 * Extended support for compression inside the SSL record layer
1702 * Overhauled Win32 builds
1703 * Cleanups and fixes to the Big Number (BN) library
1704 * Support for ASN.1 GeneralizedTime
1705 * Split ASN.1 SETs from SEQUENCEs
1706 * ASN1 and PEM support for Netscape Certificate Sequences
1707 * Overhauled Perl interface
1708 * Lots of source tree cleanups.
1709 * Lots of memory leak fixes.
1710 * Lots of bug fixes.
1712 ### Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]
1714 * Integration of the popular NO_RSA/NO_DSA patches
1715 * Initial support for compression inside the SSL record layer
1716 * Added BIO proxy and filtering functionality
1717 * Extended Big Number (BN) library
1718 * Added RIPE MD160 message digest
1719 * Added support for RC2/64bit cipher
1720 * Extended ASN.1 parser routines
1721 * Adjustments of the source tree for CVS
1722 * Support for various new platforms
1726 [CVE-2024-2511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-2511
1727 [CVE-2024-0727]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-0727
1728 [CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237
1729 [CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129
1730 [CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678
1731 [CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363
1732 [CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807
1733 [CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817
1734 [CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446
1735 [CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975
1736 [CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650
1737 [CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255
1738 [CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466
1739 [CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465
1740 [CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464
1741 [CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401
1742 [CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286
1743 [CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217
1744 [CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216
1745 [CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215
1746 [CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450
1747 [CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304
1748 [CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203
1749 [CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996
1750 [CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274
1751 [CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097
1752 [CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971
1753 [CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967
1754 [CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563
1755 [CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559
1756 [CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552
1757 [CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551
1758 [CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549
1759 [CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547
1760 [CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543
1761 [CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407
1762 [CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739
1763 [CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737
1764 [CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735
1765 [CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734
1766 [CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733
1767 [CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732
1768 [CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738
1769 [CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737
1770 [CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736
1771 [CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735
1772 [CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733
1773 [CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732
1774 [CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731
1775 [CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730
1776 [CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055
1777 [CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054
1778 [CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053
1779 [CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052
1780 [CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309
1781 [CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308
1782 [CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307
1783 [CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306
1784 [CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305
1785 [CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304
1786 [CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303
1787 [CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302
1788 [CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183
1789 [CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182
1790 [CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181
1791 [CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180
1792 [CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179
1793 [CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178
1794 [CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177
1795 [CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176
1796 [CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109
1797 [CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107
1798 [CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106
1799 [CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105
1800 [CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800
1801 [CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799
1802 [CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798
1803 [CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797
1804 [CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705
1805 [CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702
1806 [CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701
1807 [CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197
1808 [CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196
1809 [CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195
1810 [CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194
1811 [CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193
1812 [CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793
1813 [CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792
1814 [CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791
1815 [CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790
1816 [CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789
1817 [CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788
1818 [CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787
1819 [CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293
1820 [CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291
1821 [CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290
1822 [CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289
1823 [CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288
1824 [CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287
1825 [CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286
1826 [CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285
1827 [CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209
1828 [CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208
1829 [CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207
1830 [CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206
1831 [CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205
1832 [CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204
1833 [CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275
1834 [CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139
1835 [CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572
1836 [CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571
1837 [CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570
1838 [CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569
1839 [CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568
1840 [CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567
1841 [CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566
1842 [CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513
1843 [CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512
1844 [CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511
1845 [CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510
1846 [CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509
1847 [CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508
1848 [CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507
1849 [CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506
1850 [CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505
1851 [CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470
1852 [CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224
1853 [CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221
1854 [CVE-2014-0198]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0198
1855 [CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195
1856 [CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160
1857 [CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076
1858 [CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450
1859 [CVE-2013-6449]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6449
1860 [CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353
1861 [CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169
1862 [CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166
1863 [CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686
1864 [CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333
1865 [CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110
1866 [CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884
1867 [CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050
1868 [CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027
1869 [CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619
1870 [CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577
1871 [CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576
1872 [CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108
1873 [CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210
1874 [CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207
1875 [CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014
1876 [CVE-2010-5298]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-5298
1877 [CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252
1878 [CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180
1879 [CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864
1880 [CVE-2010-2939]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-2939
1881 [CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633
1882 [CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740
1883 [CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433
1884 [CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555
1885 [CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789
1886 [CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591
1887 [CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590
1888 [CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077
1889 [CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343
1890 [CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339
1891 [CVE-2006-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3737
1892 [CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940
1893 [CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937
1894 [CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969
1895 [OpenSSL Guide]: https://www.openssl.org/docs/manmaster/man7/ossl-guide-introduction.html
1896 [CHANGES.md]: ./CHANGES.md
1897 [README-QUIC.md]: ./README-QUIC.md
1898 [issue tracker]: https://github.com/openssl/openssl/issues