X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=CHANGES;h=be586a2f8a0d1ca1f55080e4261fe2d16d2f50b0;hp=5dbdfc50067d7253a9c47b87e2d2e48a91817c58;hb=3ed6e2277158868a5bbd438ef0aa7b9d86cf6393;hpb=64095ce9d7c0613b0b45fe8015b4514116afdec0 diff --git a/CHANGES b/CHANGES index 5dbdfc5006..be586a2f8a 100644 --- a/CHANGES +++ b/CHANGES @@ -2,35 +2,122 @@ OpenSSL CHANGES _______________ - Changes between 1.0.1 and 1.1.0 [xx XXX xxxx] + Changes between 1.0.x and 1.1.0 [xx XXX xxxx] - *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert - between NIDs and the more common NIST names such as "P-256". Enhance - ecparam utility and ECC method to recognise the NIST names for curves. + *) Add -rev test option to s_server to just reverse order of characters + received by client and send back to server. Also prints an abbreviated + summary of the connection parameters. [Steve Henson] - *) Enhance SSL/TLS certificate chain handling to support different - chains for each certificate instead of one chain in the parent SSL_CTX. + *) New option -brief for s_client and s_server to print out a brief summary + of connection parameters. [Steve Henson] - *) Support for fixed DH ciphersuite client authentication: where both - server and client use DH certificates with common parameters. + *) Add functions to retrieve and manipulate the raw cipherlist sent by a + client to OpenSSL. [Steve Henson] - *) Support for fixed DH ciphersuites: those requiring DH server - certificates. + *) New Suite B modes for TLS code. These use and enforce the requirements + of RFC6460: restrict ciphersuites, only permit Suite B algorithms and + only use Suite B curves. The Suite B modes can be set by using the + strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. [Steve Henson] - *) Transparently support X9.42 DH parameters when calling - PEM_read_bio_DHparameters. This means existing applications can handle - the new parameter format automatically. + *) New chain verification flags for Suite B levels of security. Check + algorithms are acceptable when flags are set in X509_verify_cert. [Steve Henson] - *) Initial experimental support for X9.42 DH parameter format: mainly - to support use of 'q' parameter for RFC5114 parameters. + *) Make tls1_check_chain return a set of flags indicating checks passed + by a certificate chain. Add additional tests to handle client + certificates: checks for matching certificate type and issuer name + comparison. [Steve Henson] - *) Add DH parameters from RFC5114 including test data to dhtest. + *) If an attempt is made to use a signature algorithm not in the peer + preference list abort the handshake. If client has no suitable + signature algorithms in response to a certificate request do not + use the certificate. + [Steve Henson] + + *) If server EC tmp key is not in client preference list abort handshake. + [Steve Henson] + + *) Add support for certificate stores in CERT structure. This makes it + possible to have different stores per SSL structure or one store in + the parent SSL_CTX. Include distint stores for certificate chain + verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN + to build and store a certificate chain in CERT structure: returing + an error if the chain cannot be built: this will allow applications + to test if a chain is correctly configured. + + Note: if the CERT based stores are not set then the parent SSL_CTX + store is used to retain compatibility with existing behaviour. + + [Steve Henson] + + *) New function ssl_set_client_disabled to set a ciphersuite disabled + mask based on the current session, check mask when sending client + hello and checking the requested ciphersuite. + [Steve Henson] + + *) New ctrls to retrieve and set certificate types in a certificate + request message. Print out received values in s_client. If certificate + types is not set with custom values set sensible values based on + supported signature algorithms. + [Steve Henson] + + *) Support for distinct client and server supported signature algorithms. + [Steve Henson] + + *) Add certificate callback. If set this is called whenever a certificate + is required by client or server. An application can decide which + certificate chain to present based on arbitrary criteria: for example + supported signature algorithms. Add very simple example to s_server. + This fixes many of the problems and restrictions of the existing client + certificate callback: for example you can now clear an existing + certificate and specify the whole chain. + [Steve Henson] + + *) Add new "valid_flags" field to CERT_PKEY structure which determines what + the certificate can be used for (if anything). Set valid_flags field + in new tls1_check_chain function. Simplify ssl_set_cert_masks which used + to have similar checks in it. + + Add new "cert_flags" field to CERT structure and include a "strict mode". + This enforces some TLS certificate requirements (such as only permitting + certificate signature algorithms contained in the supported algorithms + extension) which some implementations ignore: this option should be used + with caution as it could cause interoperability issues. + [Steve Henson] + + *) Update and tidy signature algorithm extension processing. Work out + shared signature algorithms based on preferences and peer algorithms + and print them out in s_client and s_server. Abort handshake if no + shared signature algorithms. + [Steve Henson] + + *) Add new functions to allow customised supported signature algorithms + for SSL and SSL_CTX structures. Add options to s_client and s_server + to support them. + [Steve Henson] + + *) New function SSL_certs_clear() to delete all references to certificates + from an SSL structure. Before this once a certificate had been added + it couldn't be removed. + [Steve Henson] + + *) Initial SSL tracing code. This parses out SSL/TLS records using the + message callback and prints the results. Needs compile time option + "enable-ssl-trace". New options to s_client and s_server to enable + tracing. + [Steve Henson] + + *) New functions to retrieve certificate signature and signature + OID NID. + [Steve Henson] + + *) Print out deprecated issuer and subject unique ID fields in + certificates. [Steve Henson] *) Update fips_test_suite to support multiple command line options. New @@ -269,8 +356,166 @@ is enable if DEBUG_UNUSED is set. Add to several functions in evp.h whose return value is often ignored. [Steve Henson] - - Changes between 1.0.0f and 1.0.1 [xx XXX xxxx] + + Changes between 1.0.1 and 1.0.2 [xx XXX xxxx] + + *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, + platform support for Linux and Android. + [Andy Polyakov] + + *) Call OCSP Stapling callback after ciphersuite has been chosen, so + the right response is stapled. Also change current certificate to + the certificate actually sent. + See http://rt.openssl.org/Ticket/Display.html?id=2836. + [Rob Stradling ] + + *) Support for linux-x32, ILP32 environment in x86_64 framework. + [Andy Polyakov] + + *) RFC 5878 support. + [Emilia Kasper, Adam Langley, Ben Laurie (Google)] + + *) Experimental multi-implementation support for FIPS capable OpenSSL. + When in FIPS mode the approved implementations are used as normal, + when not in FIPS mode the internal unapproved versions are used instead. + This means that the FIPS capable OpenSSL isn't forced to use the + (often lower perfomance) FIPS implementations outside FIPS mode. + [Steve Henson] + + *) Transparently support X9.42 DH parameters when calling + PEM_read_bio_DHparameters. This means existing applications can handle + the new parameter format automatically. + [Steve Henson] + + *) Initial experimental support for X9.42 DH parameter format: mainly + to support use of 'q' parameter for RFC5114 parameters. + [Steve Henson] + + *) Add DH parameters from RFC5114 including test data to dhtest. + [Steve Henson] + + *) Support for automatic EC temporary key parameter selection. If enabled + the most preferred EC parameters are automatically used instead of + hardcoded fixed parameters. Now a server just has to call: + SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically + support ECDH and use the most appropriate parameters. + [Steve Henson] + + *) Enhance and tidy EC curve and point format TLS extension code. Use + static structures instead of allocation if default values are used. + New ctrls to set curves we wish to support and to retrieve shared curves. + Print out shared curves in s_server. New options to s_server and s_client + to set list of supported curves. + [Steve Henson] + + *) New ctrls to retrieve supported signature algorithms and + supported curve values as an array of NIDs. Extend openssl utility + to print out received values. + [Steve Henson] + + *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert + between NIDs and the more common NIST names such as "P-256". Enhance + ecparam utility and ECC method to recognise the NIST names for curves. + [Steve Henson] + + *) Enhance SSL/TLS certificate chain handling to support different + chains for each certificate instead of one chain in the parent SSL_CTX. + [Steve Henson] + + *) Support for fixed DH ciphersuite client authentication: where both + server and client use DH certificates with common parameters. + [Steve Henson] + + *) Support for fixed DH ciphersuites: those requiring DH server + certificates. + [Steve Henson] + + Changes between 1.0.1c and 1.0.1d [xx XXX xxxx] + + *) Fix possible deadlock when decoding public keys. + [Steve Henson] + + *) Don't use TLS 1.0 record version number in initial client hello + if renegotiating. + [Steve Henson] + + Changes between 1.0.1b and 1.0.1c [10 May 2012] + + *) Sanity check record length before skipping explicit IV in TLS + 1.2, 1.1 and DTLS to avoid DoS attack. + + Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic + fuzzing as a service testing platform. + (CVE-2012-2333) + [Steve Henson] + + *) Initialise tkeylen properly when encrypting CMS messages. + Thanks to Solar Designer of Openwall for reporting this issue. + [Steve Henson] + + *) In FIPS mode don't try to use composite ciphers as they are not + approved. + [Steve Henson] + + Changes between 1.0.1a and 1.0.1b [26 Apr 2012] + + *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and + 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately + mean any application compiled against OpenSSL 1.0.0 headers setting + SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng + TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to + 0x10000000L Any application which was previously compiled against + OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 + will need to be recompiled as a result. Letting be results in + inability to disable specifically TLS 1.1 and in client context, + in unlike event, limit maximum offered version to TLS 1.0 [see below]. + [Steve Henson] + + *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not + disable just protocol X, but all protocols above X *if* there are + protocols *below* X still enabled. In more practical terms it means + that if application wants to disable TLS1.0 in favor of TLS1.1 and + above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass + SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to + client side. + [Andy Polyakov] + + Changes between 1.0.1 and 1.0.1a [19 Apr 2012] + + *) Check for potentially exploitable overflows in asn1_d2i_read_bio + BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer + in CRYPTO_realloc_clean. + + Thanks to Tavis Ormandy, Google Security Team, for discovering this + issue and to Adam Langley for fixing it. + (CVE-2012-2110) + [Adam Langley (Google), Tavis Ormandy, Google Security Team] + + *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. + [Adam Langley] + + *) Workarounds for some broken servers that "hang" if a client hello + record length exceeds 255 bytes: + + 1. Do not use record version number > TLS 1.0 in initial client + hello: some (but not all) hanging servers will now work. + 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate + the number of ciphers sent in the client hello. This should be + set to an even number, such as 50, for example by passing: + -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. + Most broken servers should now work. + 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable + TLS 1.2 client support entirely. + [Steve Henson] + + *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. + [Andy Polyakov] + + Changes between 1.0.0h and 1.0.1 [14 Mar 2012] + + *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET + STRING form instead of a DigestInfo. + [Steve Henson] *) The format used for MDC2 RSA signatures is inconsistent between EVP and the RSA_sign/RSA_verify functions. This was made more apparent when @@ -279,10 +524,6 @@ the correct format in RSA_verify so both forms transparently work. [Steve Henson] - *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET - STRING form instead of a DigestInfo. - [Steve Henson] - *) Some servers which support TLS 1.0 can choke if we initially indicate support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA encrypted premaster secret. As a workaround use the maximum pemitted @@ -553,7 +794,18 @@ Add command line options to s_client/s_server. [Steve Henson] - Changes between 1.0.0g and 1.0.0h [xx XXX xxxx] + Changes between 1.0.0g and 1.0.0h [12 Mar 2012] + + *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness + in CMS and PKCS7 code. When RSA decryption fails use a random key for + content decryption and always return the same error. Note: this attack + needs on average 2^20 messages so it only affects automated senders. The + old behaviour can be reenabled in the CMS code by setting the + CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where + an MMA defence is not necessary. + Thanks to Ivan Nestlerode for discovering + this issue. (CVE-2012-0884) + [Steve Henson] *) Fix CVE-2011-4619: make sure we really are receiving a client hello before rejecting multiple SGC restarts. Thanks to