OpenSSL CHANGES
_______________
- Changes between 0.9.8k and 1.0 [xx XXX xxxx]
+ Changes between 1.0.0 and 1.1.0 [xx XXX xxxx]
+
+ *) Make generated asm have non-executable stack.
+ [Contributed by Google <agl@google.com>]
+
+ *) New function OPENSSL_gmtime_diff to find the difference in days
+ and seconds between two tm structures. This will be used to provide
+ additional functionality for ASN1_TIME.
+ [Steve Henson]
+
+ *) New -sigopt option to the ca, req and x509 utilities. Additional
+ signature parameters can be passed using this option and in
+ particular PSS.
+ [Steve Henson]
+
+ *) Add RSA PSS signing function. This will generate and set the
+ appropriate AlgorithmIdentifiers for PSS based on those in the
+ corresponding EVP_MD_CTX structure. No application support yet.
+ [Steve Henson]
+
+ *) Support for companion algorithm specific ASN1 signing routines.
+ New function ASN1_item_sign_ctx() signs a pre-initialised
+ EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
+ the appropriate parameters.
+ [Steve Henson]
+
+ *) Add new algorithm specific ASN1 verification initialisation function
+ to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
+ handling will be the same no matter what EVP_PKEY_METHOD is used.
+ Add a PSS handler to support verification of PSS signatures: checked
+ against a number of sample certificates.
+ [Steve Henson]
+
+ *) Add signature printing for PSS. Add PSS OIDs.
+ [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
+
+ *) Add algorithm specific signature printing. An individual ASN1 method
+ can now print out signatures instead of the standard hex dump.
+
+ More complex signatures (e.g. PSS) can print out more meaningful
+ information. Include DSA version that prints out the signature
+ parameters r, s.
+ [Steve Henson]
+
+ *) Add -trusted_first option which attempts to find certificates in the
+ trusted store even if an untrusted chain is also supplied.
+ [Steve Henson]
+
+ *) Initial experimental support for explicitly trusted non-root CAs.
+ OpenSSL still tries to build a complete chain to a root but if an
+ intermediate CA has a trust setting included that is used. The first
+ setting is used: whether to trust or reject.
+ [Steve Henson]
+
+ *) New -verify_name option in command line utilities to set verification
+ parameters by name.
+ [Steve Henson]
+
+ *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
+ Add CMAC pkey methods.
+ [Steve Henson]
+
+ *) Experiemental regnegotiation in s_server -www mode. If the client
+ browses /reneg connection is renegotiated. If /renegcert it is
+ renegotiated requesting a certificate.
+ [Steve Henson]
+
+ *) Add an "external" session cache for debugging purposes to s_server. This
+ should help trace issues which normally are only apparent in deployed
+ multi-process servers.
+ [Steve Henson]
+
+ *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
+ a few changes are required:
+
+ Add SSL_OP_NO_TLSv1_1 flag.
+ Add TLSv1_1 methods.
+ Update version checking logic to handle version 1.1.
+ Add explicit IV handling (ported from DTLS code).
+ Add command line options to s_client/s_server.
+ [Steve Henson]
+
+ *) Experiemental password based recipient info support for CMS library:
+ implementing RFC3211.
+ [Steve Henson]
+
+ *) Split password based encryption into PBES2 and PBKDF2 functions. This
+ neatly separates the code into cipher and PBE sections and is required
+ for some algorithms that split PBES2 into separate pieces (such as
+ password based CMS).
+ [Steve Henson]
*) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
return value is ignored. NB. The functions RAND_add(), RAND_seed(),
whose return value is often ignored.
[Steve Henson]
+ Changes between 0.9.8n and 1.0.0 [xx XXX xxxx]
+
+ *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
+ context. The operation can be customised via the ctrl mechanism in
+ case ENGINEs want to include additional functionality.
+ [Steve Henson]
+
+ *) Tolerate yet another broken PKCS#8 key format: private key value negative.
+ [Steve Henson]
+
+ *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
+ output hashes compatible with older versions of OpenSSL.
+ [Willy Weisz <weisz@vcpc.univie.ac.at>]
+
+ *) Fix compression algorithm handling: if resuming a session use the
+ compression algorithm of the resumed session instead of determining
+ it from client hello again. Don't allow server to change algorithm.
+ [Steve Henson]
+
+ *) Add load_crls() function to apps tidying load_certs() too. Add option
+ to verify utility to allow additional CRLs to be included.
+ [Steve Henson]
+
+ *) Update OCSP request code to permit adding custom headers to the request:
+ some responders need this.
+ [Steve Henson]
+
*) The function EVP_PKEY_sign() returns <=0 on error: check return code
correctly.
[Julia Lawall <julia@diku.dk>]
didn't handle all updated verify codes correctly.
[Steve Henson]
- *) Delete MD2 from algorithm tables. This follows the recommendation in
- several standards that it is not used in new applications due to
- several cryptographic weaknesses. The algorithm is also disabled in
- the default configuration.
+ *) Disable MD2 in the default configuration.
[Steve Henson]
*) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
or they could free up already freed BIOs.
[Steve Henson]
- *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
- OPENSSL_asc2uni the original names were too generic and cause name
- clashes on Netware.
+ *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
+ renaming to all platforms (within the 0.9.8 branch, this was
+ done conditionally on Netware platforms to avoid a name clash).
[Guenter <lists@gknw.net>]
*) Add ECDHE and PSK support to DTLS.
*) Change 'Configure' script to enable Camellia by default.
[NTT]
+
+ Changes between 0.9.8n and 0.9.8o [xx XXX xxxx]
+
+ *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
+ common in certificates and some applications which only call
+ SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
+ [Steve Henson]
+
+ Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
+
+ *) When rejecting SSL/TLS records due to an incorrect version number, never
+ update s->server with a new major version number. As of
+ - OpenSSL 0.9.8m if 'short' is a 16-bit type,
+ - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
+ the previous behavior could result in a read attempt at NULL when
+ receiving specific incorrect SSL/TLS records once record payload
+ protection is active. (CVE-2010-####)
+ [Bodo Moeller, Adam Langley]
- Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
+ *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
+ could be crashed if the relevant tables were not present (e.g. chrooted).
+ [Tomas Hoger <thoger@redhat.com>]
+
+ Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
+
+ *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
+ [Martin Olsson, Neel Mehta]
+
+ *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
+ accommodate for stack sorting, always a write lock!).
+ [Bodo Moeller]
+
+ *) On some versions of WIN32 Heap32Next is very slow. This can cause
+ excessive delays in the RAND_poll(): over a minute. As a workaround
+ include a time check in the inner Heap32Next loop too.
+ [Steve Henson]
+
+ *) The code that handled flushing of data in SSL/TLS originally used the
+ BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
+ the problem outlined in PR#1949. The fix suggested there however can
+ trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
+ of Apache). So instead simplify the code to flush unconditionally.
+ This should be fine since flushing with no data to flush is a no op.
+ [Steve Henson]
+
+ *) Handle TLS versions 2.0 and later properly and correctly use the
+ highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
+ off ancient servers have a habit of sticking around for a while...
+ [Steve Henson]
+
+ *) Modify compression code so it frees up structures without using the
+ ex_data callbacks. This works around a problem where some applications
+ call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
+ restarting) then use compression (e.g. SSL with compression) later.
+ This results in significant per-connection memory leaks and
+ has caused some security issues including CVE-2008-1678 and
+ CVE-2009-4355.
+ [Steve Henson]
+
+ *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
+ change when encrypting or decrypting.
+ [Bodo Moeller]
+
+ *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
+ connect and renegotiate with servers which do not support RI.
+ Until RI is more widely deployed this option is enabled by default.
+ [Steve Henson]
+
+ *) Add "missing" ssl ctrls to clear options and mode.
+ [Steve Henson]
+
+ *) If client attempts to renegotiate and doesn't support RI respond with
+ a no_renegotiation alert as required by RFC5746. Some renegotiating
+ TLS clients will continue a connection gracefully when they receive
+ the alert. Unfortunately OpenSSL mishandled this alert and would hang
+ waiting for a server hello which it will never receive. Now we treat a
+ received no_renegotiation alert as a fatal error. This is because
+ applications requesting a renegotiation might well expect it to succeed
+ and would have no code in place to handle the server denying it so the
+ only safe thing to do is to terminate the connection.
+ [Steve Henson]
+
+ *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
+ peer supports secure renegotiation and 0 otherwise. Print out peer
+ renegotiation support in s_client/s_server.
+ [Steve Henson]
+
+ *) Replace the highly broken and deprecated SPKAC certification method with
+ the updated NID creation version. This should correctly handle UTF8.
+ [Steve Henson]
+
+ *) Implement RFC5746. Re-enable renegotiation but require the extension
+ as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
+ turns out to be a bad idea. It has been replaced by
+ SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
+ SSL_CTX_set_options(). This is really not recommended unless you
+ know what you are doing.
+ [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
+
+ *) Fixes to stateless session resumption handling. Use initial_ctx when
+ issuing and attempting to decrypt tickets in case it has changed during
+ servername handling. Use a non-zero length session ID when attempting
+ stateless session resumption: this makes it possible to determine if
+ a resumption has occurred immediately after receiving server hello
+ (several places in OpenSSL subtly assume this) instead of later in
+ the handshake.
+ [Steve Henson]
*) The functions ENGINE_ctrl(), OPENSSL_isservice(),
CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
[Steve Henson]
*) Add support for --libdir option and LIBDIR variable in makefiles. This
- makes it possible to install openssl libraries in locations which
+ makes it possible to install openssl libraries in locations which
have names other than "lib", for example "/usr/lib64" which some
systems need.
[Steve Henson, based on patch from Jeremy Utley]
X690 8.9.12 and can produce some misleading textual output of OIDs.
[Steve Henson, reported by Dan Kaminsky]
+ *) Delete MD2 from algorithm tables. This follows the recommendation in
+ several standards that it is not used in new applications due to
+ several cryptographic weaknesses. For binary compatibility reasons
+ the MD2 API is still compiled in by default.
+ [Steve Henson]
+
*) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
and restored.
[Steve Henson]
+ *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
+ OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
+ clash.
+ [Guenter <lists@gknw.net>]
+
*) Fix the server certificate chain building code to use X509_verify_cert(),
it used to have an ad-hoc builder which was unable to cope with anything
other than a simple chain.
left. Additionally every future messege was buffered, even if the
sequence number made no sense and would be part of another handshake.
So only messages with sequence numbers less than 10 in advance will be
- buffered.
+ buffered. (CVE-2009-1378)
[Robin Seggelmann, discovered by Daniel Mentz]
*) Records are buffered if they arrive with a future epoch to be
a DOS attack with sending records with future epochs until there is no
memory left. This patch adds the pqueue_size() function to detemine
the size of a buffer and limits the record buffer to 100 entries.
+ (CVE-2009-1377)
[Robin Seggelmann, discovered by Daniel Mentz]
*) Keep a copy of frag->msg_header.frag_len so it can be used after the
- parent structure is freed.
+ parent structure is freed. (CVE-2009-1379)
[Daniel Mentz]
*) Handle non-blocking I/O properly in SSL_shutdown() call.
*) Add 2.5.4.* OIDs
[Ilya O. <vrghost@gmail.com>]
+ Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
+
+ *) Disable renegotiation completely - this fixes a severe security
+ problem (CVE-2009-3555) at the cost of breaking all
+ renegotiation. Renegotiation can be re-enabled by setting
+ SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
+ run-time. This is really not recommended unless you know what
+ you're doing.
+ [Ben Laurie]
+
Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
*) Don't set val to NULL when freeing up structures, it is freed up by
*) Support NumericString type for name components.
[Steve Henson]
-
+
*) Allow CC in the environment to override the automatically chosen
compiler. Note that nothing is done to ensure flags work with the
chosen compiler.
[Ben Laurie]
-
+
Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
*) Properly check EVP_VerifyFinal() and similar return values
Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
+ *) Fix NULL pointer dereference if a DTLS server received
+ ChangeCipherSpec as first record (CVE-2009-1386).
+ [PR #1679]
+
*) Fix a state transitition in s3_srvr.c and d1_srvr.c
(was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
[Nagendra Modadugu]
differing sizes.
[Richard Levitte]
- Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
-
- *) In the SSL/TLS server implementation, be strict about session ID
- context matching (which matters if an application uses a single
- external cache for different purposes). Previously,
- out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
- set. This did ensure strict client verification, but meant that,
- with applications using a single external cache for quite
- different requirements, clients could circumvent ciphersuite
- restrictions for a given session ID context by starting a session
- in a different context.
- [Bodo Moeller]
-
Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
*) Cleanse PEM buffers before freeing them since they may contain
projects / openssl.git / blobdiff