OpenSSL CHANGES
_______________
- Changes between 0.9.8k and 1.0 [xx XXX xxxx]
+ Changes between 1.0.0d and 1.0.1 [xx XXX xxxx]
+
+ *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
+ ENGINE is used then we cannot handle that in the FIPS module so we
+ keep original code iff non-FIPS operations are allowed.
+ [Steve Henson]
+
+ *) Add -attime option to openssl verify.
+ [Peter Eckersley <pde@eff.org> and Ben Laurie]
+
+ *) Redirect DSA and DH operations to FIPS module in FIPS mode.
+ [Steve Henson]
+
+ *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
+ FIPS EC methods unconditionally for now.
+ [Steve Henson]
+
+ *) New build option no-ec2m to disable characteristic 2 code.
+ [Steve Henson]
+
+ *) Backport libcrypto audit of return value checking from HEAD, not
+ all cases can be covered as some introduce binary incompatibilities.
+ [Steve Henson]
+
+ *) Redirect RSA operations to FIPS module including keygen,
+ encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
+ [Steve Henson]
+
+ *) Add similar low level API blocking to ciphers.
+ [Steve Henson]
+
+ *) Low level digest APIs are not approved in FIPS mode: any attempt
+ to use these will cause a fatal error. Applications that *really* want
+ to use them can use the private_* version instead.
+ [Steve Henson]
+
+ *) Redirect cipher operations to FIPS module for FIPS builds.
+ [Steve Henson]
+
+ *) Redirect digest operations to FIPS module for FIPS builds.
+ [Steve Henson]
+
+ *) Update build system to add "fips" flag which will link in fipscanister.o
+ for static and shared library builds embedding a signature if needed.
+ [Steve Henson]
+
+ *) Output TLS supported curves in preference order instead of numerical
+ order. This is currently hardcoded for the highest order curves first.
+ This should be configurable so applications can judge speed vs strength.
+ [Steve Henson]
+
+ *) Add protection against ECDSA timing attacks as mentioned in the paper
+ by Billy Bob Brumley and Nicola Tuveri, see:
+
+ http://eprint.iacr.org/2011/232.pdf
+
+ [Billy Bob Brumley and Nicola Tuveri]
+
+ *) Add TLS v1.2 server support for client authentication.
+ [Steve Henson]
+
+ *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
+ and enable MD5.
+ [Steve Henson]
+
+ *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
+ FIPS modules versions.
+ [Steve Henson]
+
+ *) Add TLS v1.2 client side support for client authentication. Keep cache
+ of handshake records longer as we don't know the hash algorithm to use
+ until after the certificate request message is received.
+ [Steve Henson]
+
+ *) Initial TLS v1.2 client support. Add a default signature algorithms
+ extension including all the algorithms we support. Parse new signature
+ format in client key exchange. Relax some ECC signing restrictions for
+ TLS v1.2 as indicated in RFC5246.
+ [Steve Henson]
+
+ *) Add server support for TLS v1.2 signature algorithms extension. Switch
+ to new signature format when needed using client digest preference.
+ All server ciphersuites should now work correctly in TLS v1.2. No client
+ support yet and no support for client certificates.
+ [Steve Henson]
+
+ *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
+ to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
+ ciphersuites. At present only RSA key exchange ciphersuites work with
+ TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
+ SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
+ and version checking.
+ [Steve Henson]
+
+ *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
+ with this defined it will not be affected by any changes to ssl internal
+ structures. Add several utility functions to allow openssl application
+ to work with OPENSSL_NO_SSL_INTERN defined.
+ [Steve Henson]
+
+ *) Add SRP support.
+ [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
+
+ *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
+ [Steve Henson]
+
+ *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
+ elliptic curve NIST-P224 with constant-time single point multiplication on
+ typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
+ (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
+ flexible implementations).
+
+ The implementation requires support for the nonstandard type __uint128_t,
+ and so is disabled by default. To include this in your build of OpenSSL,
+ use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
+ and run "make depend" (or "make update").
+ [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
+
+ *) Permit abbreviated handshakes when renegotiating using the function
+ SSL_renegotiate_abbreviated().
+ [Robin Seggelmann <seggelmann@fh-muenster.de>]
+
+ *) Add call to ENGINE_register_all_complete() to
+ ENGINE_load_builtin_engines(), so some implementations get used
+ automatically instead of needing explicit application support.
+ [Steve Henson]
+
+ *) Add support for TLS key exporter as described in RFC5705.
+ [Robin Seggelmann <seggelmann@fh-muenster.de>, 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]
+
+ Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
+
+ *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
+ [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
+
+ *) Fix bug in string printing code: if *any* escaping is enabled we must
+ escape the escape character (backslash) or the resulting string is
+ ambiguous.
+ [Steve Henson]
+
+ Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
+
+ *) Disable code workaround for ancient and obsolete Netscape browsers
+ and servers: an attacker can use it in a ciphersuite downgrade attack.
+ Thanks to Martin Rex for discovering this bug. CVE-2010-4180
+ [Steve Henson]
+
+ *) Fixed J-PAKE implementation error, originally discovered by
+ Sebastien Martini, further info and confirmation from Stefan
+ Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
+ [Ben Laurie]
+
+ Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
+
+ *) Fix extension code to avoid race conditions which can result in a buffer
+ overrun vulnerability: resumed sessions must not be modified as they can
+ be shared by multiple threads. CVE-2010-3864
+ [Steve Henson]
+
+ *) Fix WIN32 build system to correctly link an ENGINE directory into
+ a DLL.
+ [Steve Henson]
+
+ Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
+
+ *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
+ (CVE-2010-1633)
+ [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
+
+ Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
+
+ *) 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.
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 0.9.8q and 0.9.8r [8 Feb 2011]
+
+ *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
+ [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
+
+ *) Fix bug in string printing code: if *any* escaping is enabled we must
+ escape the escape character (backslash) or the resulting string is
+ ambiguous.
+ [Steve Henson]
+
+ Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
+
+ *) Disable code workaround for ancient and obsolete Netscape browsers
+ and servers: an attacker can use it in a ciphersuite downgrade attack.
+ Thanks to Martin Rex for discovering this bug. CVE-2010-4180
+ [Steve Henson]
+
+ *) Fixed J-PAKE implementation error, originally discovered by
+ Sebastien Martini, further info and confirmation from Stefan
+ Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
+ [Ben Laurie]
+
+ Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
+
+ *) Fix extension code to avoid race conditions which can result in a buffer
+ overrun vulnerability: resumed sessions must not be modified as they can
+ be shared by multiple threads. CVE-2010-3864
+ [Steve Henson]
+
+ *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
+ [Steve Henson]
+
+ *) Don't reencode certificate when calculating signature: cache and use
+ the original encoding instead. This makes signature verification of
+ some broken encodings work correctly.
+ [Steve Henson]
+
+ *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
+ is also one of the inputs.
+ [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
+
+ *) Don't repeatedly append PBE algorithms to table if they already exist.
+ Sort table on each new add. This effectively makes the table read only
+ after all algorithms are added and subsequent calls to PKCS12_pbe_add
+ etc are non-op.
+ [Steve Henson]
+
+ Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
+
+ [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
+ OpenSSL 1.0.0.]
+
+ *) Correct a typo in the CMS ASN1 module which can result in invalid memory
+ access or freeing data twice (CVE-2010-0742)
+ [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
+
+ *) 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]
+
+ *) VMS fixes:
+ Reduce copying into .apps and .test in makevms.com
+ Don't try to use blank CA certificate in CA.com
+ Allow use of C files from original directories in maketests.com
+ [Steven M. Schweda" <sms@antinode.info>]
+
+ 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-2010-0740)
+ [Bodo Moeller, Adam Langley <agl@chromium.org>]
+
+ *) 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]
- Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
+ *) 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