X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=CHANGES;h=797c02118c11938899035b19b58ce9ae72034c1c;hp=72b5ace4bc628a6302f2b0c72d6b8299eb4c990e;hb=46ab9bbd7fa610d775fe645dd0fe6d509c8dff3a;hpb=bdaa54155cceb34846a202d0027054fd51493695 diff --git a/CHANGES b/CHANGES index 72b5ace4bc..797c02118c 100644 --- a/CHANGES +++ b/CHANGES @@ -2,7 +2,206 @@ OpenSSL CHANGES _______________ - Changes between 1.0.1 and 1.1.0 [xx XXX xxxx] + Changes between 1.0.2 and 1.1.0 [xx XXX xxxx] + + *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): + this fixes a limiation in previous versions of OpenSSL. + [Steve Henson] + + *) Experimental encrypt-then-mac support. + + Experimental support for encrypt then mac from + draft-gutmann-tls-encrypt-then-mac-02.txt + + To enable it set the appropriate extension number (0x42 for the test + server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 + + For non-compliant peers (i.e. just about everything) this should have no + effect. + + WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. + + [Steve Henson] + + *) Add callbacks supporting generation and retrieval of supplemental + data entries. + [Scott Deboy , Trevor Perrin and Ben Laurie] + + *) Add EVP support for key wrapping algorithms, to avoid problems with + existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in + the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap + algorithms and include tests cases. + [Steve Henson] + + *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for + enveloped data. + [Steve Henson] + + *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, + MGF1 digest and OAEP label. + [Steve Henson] + + *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() + supports both DTLS 1.2 and 1.0 and should use whatever version the peer + supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. + [Steve Henson] + + *) Make openssl verify return errors. + [Chris Palmer and Ben Laurie] + + *) New function ASN1_TIME_diff to calculate the difference between two + ASN1_TIME structures or one structure and the current time. + [Steve Henson] + + *) Update fips_test_suite to support multiple command line options. New + test to induce all self test errors in sequence and check expected + failures. + [Steve Henson] + + *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and + sign or verify all in one operation. + [Steve Henson] + + *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm + test programs and fips_test_suite. Includes functionality to parse + the minimal script output of fipsalgest.pl directly. + [Steve Henson] + + *) Add authorisation parameter to FIPS_module_mode_set(). + [Steve Henson] + + *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. + [Steve Henson] + + *) Use separate DRBG fields for internal and external flags. New function + FIPS_drbg_health_check() to perform on demand health checking. Add + generation tests to fips_test_suite with reduced health check interval to + demonstrate periodic health checking. Add "nodh" option to + fips_test_suite to skip very slow DH test. + [Steve Henson] + + *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers + based on NID. + [Steve Henson] + + *) More extensive health check for DRBG checking many more failure modes. + New function FIPS_selftest_drbg_all() to handle every possible DRBG + combination: call this in fips_test_suite. + [Steve Henson] + + *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test + and POST to handle Dual EC cases. + [Steve Henson] + + *) Add support for canonical generation of DSA parameter 'g'. See + FIPS 186-3 A.2.3. + + *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and + POST to handle HMAC cases. + [Steve Henson] + + *) Add functions FIPS_module_version() and FIPS_module_version_text() + to return numerical and string versions of the FIPS module number. + [Steve Henson] + + *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and + FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented + outside the validated module in the FIPS capable OpenSSL. + [Steve Henson] + + *) Minor change to DRBG entropy callback semantics. In some cases + there is no multiple of the block length between min_len and + max_len. Allow the callback to return more than max_len bytes + of entropy but discard any extra: it is the callback's responsibility + to ensure that the extra data discarded does not impact the + requested amount of entropy. + [Steve Henson] + + *) Add PRNG security strength checks to RSA, DSA and ECDSA using + information in FIPS186-3, SP800-57 and SP800-131A. + [Steve Henson] + + *) CCM support via EVP. Interface is very similar to GCM case except we + must supply all data in one chunk (i.e. no update, final) and the + message length must be supplied if AAD is used. Add algorithm test + support. + [Steve Henson] + + *) Initial version of POST overhaul. Add POST callback to allow the status + of POST to be monitored and/or failures induced. Modify fips_test_suite + to use callback. Always run all selftests even if one fails. + [Steve Henson] + + *) XTS support including algorithm test driver in the fips_gcmtest program. + Note: this does increase the maximum key length from 32 to 64 bytes but + there should be no binary compatibility issues as existing applications + will never use XTS mode. + [Steve Henson] + + *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies + to OpenSSL RAND code and replace with a tiny FIPS RAND API which also + performs algorithm blocking for unapproved PRNG types. Also do not + set PRNG type in FIPS_mode_set(): leave this to the application. + Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with + the standard OpenSSL PRNG: set additional data to a date time vector. + [Steve Henson] + + *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*. + This shouldn't present any incompatibility problems because applications + shouldn't be using these directly and any that are will need to rethink + anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 + [Steve Henson] + + *) Extensive self tests and health checking required by SP800-90 DRBG. + Remove strength parameter from FIPS_drbg_instantiate and always + instantiate at maximum supported strength. + [Steve Henson] + + *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing. + [Steve Henson] + + *) New algorithm test program fips_dhvs to handle DH primitives only testing. + [Steve Henson] + + *) New function DH_compute_key_padded() to compute a DH key and pad with + leading zeroes if needed: this complies with SP800-56A et al. + [Steve Henson] + + *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by + anything, incomplete, subject to change and largely untested at present. + [Steve Henson] + + *) Modify fipscanisteronly build option to only build the necessary object + files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. + [Steve Henson] + + *) Add experimental option FIPSSYMS to give all symbols in + fipscanister.o and FIPS or fips prefix. This will avoid + conflicts with future versions of OpenSSL. Add perl script + util/fipsas.pl to preprocess assembly language source files + and rename any affected symbols. + [Steve Henson] + + *) Add selftest checks and algorithm block of non-fips algorithms in + FIPS mode. Remove DES2 from selftests. + [Steve Henson] + + *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just + return internal method without any ENGINE dependencies. Add new + tiny fips sign and verify functions. + [Steve Henson] + + *) New build option no-ec2m to disable characteristic 2 code. + [Steve Henson] + + *) New build option "fipscanisteronly". This only builds fipscanister.o + and (currently) associated fips utilities. Uses the file Makefile.fips + instead of Makefile.org as the prototype. + [Steve Henson] + + *) Add some FIPS mode restrictions to GCM. Add internal IV generator. + Update fips_gcmtest to use IV generator. + [Steve Henson] *) Initial, experimental EVP support for AES-GCM. AAD can be input by setting output buffer to NULL. The *Final function must be @@ -45,22 +244,522 @@ security. [Emilia Käsper (Google)] + *) 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] + + *) Experimental 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] + + *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where + return value is ignored. NB. The functions RAND_add(), RAND_seed(), + BIO_set_cipher() and some obscure PEM functions were changed so they + can now return an error. The RAND changes required a change to the + RAND_METHOD structure. + [Steve Henson] + + *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of + a gcc attribute to warn if the result of a function is ignored. This + is enable if DEBUG_UNUSED is set. Add to several functions in evp.h + whose return value is often ignored. + [Steve Henson] + + Changes between 1.0.1e and 1.0.2 [xx XXX xxxx] + + *) Keep original DTLS digest and encryption contexts in retransmission + structures so we can use the previous session parameters if they need + to be resent. (CVE-2013-6450) + [Steve Henson] + + *) TLS pad extension: draft-agl-tls-padding-02 + + Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the + TLS client Hello record length value would otherwise be > 255 and + less that 512 pad with a dummy extension containing zeroes so it + is at least 512 bytes long. + + To enable it use an unused extension number (for example chrome uses + 35655) using: + + e.g. -DTLSEXT_TYPE_padding=35655 + + Since the extension is ignored the actual number doesn't matter as long + as it doesn't clash with any existing extension. + + This will be updated when the extension gets an official number. + + [Adam Langley, Steve Henson] + + *) Add functions to allocate and set the fields of an ECDSA_METHOD + structure. + [Douglas E. Engert, Steve Henson] + + *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which + avoids preferring ECDHE-ECDSA ciphers when the client appears to be + Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for + several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug + is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing + 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. + [Rob Stradling, Adam Langley] + + *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the + difference in days and seconds between two tm or ASN1_TIME structures. + [Steve Henson] + + *) 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] + + *) New option -brief for s_client and s_server to print out a brief summary + of connection parameters. + [Steve Henson] + + *) Add callbacks for arbitrary TLS extensions. + [Trevor Perrin and Ben Laurie] + + *) New option -crl_download in several openssl utilities to download CRLs + from CRLDP extension in certificates. + [Steve Henson] + + *) New options -CRL and -CRLform for s_client and s_server for CRLs. + [Steve Henson] + + *) New function X509_CRL_diff to generate a delta CRL from the difference + of two full CRLs. Add support to "crl" utility. + [Steve Henson] + + *) New functions to set lookup_crls function and to retrieve + X509_STORE from X509_STORE_CTX. + [Steve Henson] + + *) Print out deprecated issuer and subject unique ID fields in + certificates. + [Steve Henson] + + *) Extend OCSP I/O functions so they can be used for simple general purpose + HTTP as well as OCSP. New wrapper function which can be used to download + CRLs using the OCSP API. + [Steve Henson] + + *) Delegate command line handling in s_client/s_server to SSL_CONF APIs. + [Steve Henson] + + *) SSL_CONF* functions. These provide a common framework for application + configuration using configuration files or command lines. + [Steve Henson] + + *) SSL/TLS 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 ctrl and macro to retrieve supported points extensions. + Print out extension in s_server and s_client. + [Steve Henson] + + *) New functions to retrieve certificate signature and signature + OID NID. + [Steve Henson] + + *) Add functions to retrieve and manipulate the raw cipherlist sent by a + client to OpenSSL. + [Steve Henson] + + *) 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] + + *) New chain verification flags for Suite B levels of security. Check + algorithms are acceptable when flags are set in X509_verify_cert. + [Steve Henson] + + *) 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] + + *) 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] + + *) Integrate hostname, email address and IP address checking with certificate + verification. New verify options supporting checking in opensl utility. + [Steve Henson] + + *) Fixes and wildcard matching support to hostname and email checking + functions. Add manual page. + [Florian Weimer (Red Hat Product Security Team)] + + *) New functions to check a hostname email or IP address against a + certificate. Add options x509 utility to print results of checks against + a certificate. + [Steve Henson] + + *) Fix OCSP checking. + [Rob Stradling and Ben Laurie] + + *) 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 (e.g., -addtrust option to the x509 + utility) or reject. + [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] + + *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, + platform support for Linux and Android. + [Andy Polyakov] + + *) Support for linux-x32, ILP32 environment in x86_64 framework. + [Andy Polyakov] + + *) RFC 5878 (TLS Authorization Extensions) 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 1.0.1d and 1.0.1e [11 Feb 2013] + + *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI + supporting platforms or when small records were transferred. + [Andy Polyakov, Steve Henson] + + Changes between 1.0.1c and 1.0.1d [5 Feb 2013] + + *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. + + This addresses the flaw in CBC record processing discovered by + Nadhem Alfardan and Kenny Paterson. Details of this attack can be found + at: http://www.isg.rhul.ac.uk/tls/ + + Thanks go to Nadhem Alfardan and Kenny Paterson of the Information + Security Group at Royal Holloway, University of London + (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and + Emilia Käsper for the initial patch. + (CVE-2013-0169) + [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] + + *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode + ciphersuites which can be exploited in a denial of service attack. + Thanks go to and to Adam Langley for discovering + and detecting this bug and to Wolfgang Ettlinger + for independently discovering this issue. + (CVE-2012-2686) + [Adam Langley] + + *) Return an error when checking OCSP signatures when key is NULL. + This fixes a DoS attack. (CVE-2013-0166) + [Steve Henson] + + *) Make openssl verify return errors. + [Chris Palmer and Ben Laurie] + + *) Call OCSP Stapling callback after ciphersuite has been chosen, so + the right response is stapled. Also change SSL_get_certificate() + so it returns the certificate actually sent. + See http://rt.openssl.org/Ticket/Display.html?id=2836. + [Rob Stradling ] + + *) 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 fix 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 + OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular + those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect + the correct format in RSA_verify so both forms transparently work. + [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 + client version in client hello, this should keep such servers happy + and still work with previous versions of OpenSSL. + [Steve Henson] + + *) Add support for TLS/DTLS heartbeats. + [Robin Seggelmann ] + + *) Add support for SCTP. + [Robin Seggelmann ] + + *) Improved PRNG seeding for VOS. + [Paul Green ] + + *) Extensive assembler packs updates, most notably: + + - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; + - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); + - x86_64: bit-sliced AES implementation; + - ARM: NEON support, contemporary platforms optimizations; + - s390x: z196 support; + - *: GHASH and GF(2^m) multiplication implementations; + + [Andy Polyakov] + + *) Make TLS-SRP code conformant with RFC 5054 API cleanup + (removal of unnecessary code) + [Peter Sylvester ] + + *) Add TLS key material exporter from RFC 5705. + [Eric Rescorla] + + *) Add DTLS-SRTP negotiation from RFC 5764. + [Eric Rescorla] + *) Add Next Protocol Negotiation, http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be disabled with a no-npn flag to config or Configure. Code donated by Google. [Adam Langley and Ben Laurie] + *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, + NIST-P256, NIST-P521, with constant-time single point multiplication on + typical inputs. Compiler support for the nonstandard type __uint128_t is + required to use this (present in gcc 4.4 and later, for 64-bit builds). + Code made available under Apache License version 2.0. + + Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command + line to include this in your build of OpenSSL, and run "make depend" (or + "make update"). This enables the following EC_METHODs: + + EC_GFp_nistp224_method() + EC_GFp_nistp256_method() + EC_GFp_nistp521_method() + + EC_GROUP_new_by_curve_name() will automatically use these (while + EC_GROUP_new_curve_GFp() currently prefers the more flexible + implementations). + [Emilia Käsper, Adam Langley, Bodo Moeller (Google)] + *) Use type ossl_ssize_t instad of ssize_t which isn't available on all platforms. Move ssize_t definition from e_os.h to the public header file e_os2.h as it now appears in public header file cms.h [Steve Henson] - *) 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. @@ -95,73 +794,152 @@ 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. + *) Password based recipient info support for CMS library: implementing + RFC3211. [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. + *) 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] - *) New -verify_name option in command line utilities to set verification - parameters by name. + *) Session-handling fixes: + - Fix handling of connections that are resuming with a session ID, + but also support Session Tickets. + - Fix a bug that suppressed issuing of a new ticket if the client + presented a ticket with an expired session. + - Try to set the ticket lifetime hint to something reasonable. + - Make tickets shorter by excluding irrelevant information. + - On the client side, don't ignore renewed tickets. + [Adam Langley, Bodo Moeller (Google)] + + *) Fix PSK session representation. + [Bodo Moeller] + + *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. + + This work was sponsored by Intel. + [Andy Polyakov] + + *) Add GCM support to TLS library. Some custom code is needed to split + the IV between the fixed (from PRF) and explicit (from TLS record) + portions. This adds all GCM ciphersuites supported by RFC5288 and + RFC5289. Generalise some AES* cipherstrings to inlclude GCM and + add a special AESGCM string for GCM only. [Steve Henson] - *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. - Add CMAC pkey methods. + *) Expand range of ctrls for AES GCM. Permit setting invocation + field on decrypt and retrieval of invocation field only on encrypt. [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. + *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. + As required by RFC5289 these ciphersuites cannot be used if for + versions of TLS earlier than 1.2. [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. + *) For FIPS capable OpenSSL interpret a NULL default public key method + as unset and return the appopriate default but do *not* set the default. + This means we can return the appopriate method in applications that + swicth between FIPS and non-FIPS modes. [Steve Henson] - *) Experiemental password based recipient info support for CMS library: - implementing RFC3211. + *) 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] - *) 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). + *) Add -attime option to openssl utilities. + [Peter Eckersley , Ben Laurie and Steve Henson] + + *) Redirect DSA and DH operations to FIPS module in FIPS mode. [Steve Henson] - *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where - return value is ignored. NB. The functions RAND_add(), RAND_seed(), - BIO_set_cipher() and some obscure PEM functions were changed so they - can now return an error. The RAND changes required a change to the - RAND_METHOD structure. + *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use + FIPS EC methods unconditionally for now. [Steve Henson] - *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of - a gcc attribute to warn if the result of a function is ignored. This - is enable if DEBUG_UNUSED is set. Add to several functions in evp.h - whose return value is often ignored. + *) New build option no-ec2m to disable characteristic 2 code. [Steve Henson] - - Changes between 1.0.0c and 1.0.1 [xx XXX xxxx] - *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. + *) Backport libcrypto audit of return value checking from 1.1.0-dev; not + all cases can be covered as some introduce binary incompatibilities. [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). + *) Redirect RSA operations to FIPS module including keygen, + encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. + [Steve Henson] - 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 (Google)] + *) 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 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 and Ben Laurie] + + *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. + [Steve Henson] *) Permit abbreviated handshakes when renegotiating using the function SSL_renegotiate_abbreviated(). @@ -185,7 +963,177 @@ Add command line options to s_client/s_server. [Steve Henson] - Changes between 1.0.0c and 1.0.0d [xx XXX xxxx] + Changes between 1.0.0j and 1.0.0k [5 Feb 2013] + + *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. + + This addresses the flaw in CBC record processing discovered by + Nadhem Alfardan and Kenny Paterson. Details of this attack can be found + at: http://www.isg.rhul.ac.uk/tls/ + + Thanks go to Nadhem Alfardan and Kenny Paterson of the Information + Security Group at Royal Holloway, University of London + (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and + Emilia Käsper for the initial patch. + (CVE-2013-0169) + [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] + + *) Return an error when checking OCSP signatures when key is NULL. + This fixes a DoS attack. (CVE-2013-0166) + [Steve Henson] + + *) Call OCSP Stapling callback after ciphersuite has been chosen, so + the right response is stapled. Also change SSL_get_certificate() + so it returns the certificate actually sent. + See http://rt.openssl.org/Ticket/Display.html?id=2836. + (This is a backport) + [Rob Stradling ] + + *) Fix possible deadlock when decoding public keys. + [Steve Henson] + + Changes between 1.0.0i and 1.0.0j [10 May 2012] + + [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after + OpenSSL 1.0.1.] + + *) Sanity check record length before skipping explicit IV in DTLS + to fix 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] + + Changes between 1.0.0h and 1.0.0i [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] + + 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 + Ivan Nestlerode for discovering this bug. + [Steve Henson] + + Changes between 1.0.0f and 1.0.0g [18 Jan 2012] + + *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. + Thanks to Antonio Martin, Enterprise Secure Access Research and + Development, Cisco Systems, Inc. for discovering this bug and + preparing a fix. (CVE-2012-0050) + [Antonio Martin] + + Changes between 1.0.0e and 1.0.0f [4 Jan 2012] + + *) Nadhem Alfardan and Kenny Paterson have discovered an extension + of the Vaudenay padding oracle attack on CBC mode encryption + which enables an efficient plaintext recovery attack against + the OpenSSL implementation of DTLS. Their attack exploits timing + differences arising during decryption processing. A research + paper describing this attack can be found at: + http://www.isg.rhul.ac.uk/~kp/dtls.pdf + Thanks go to Nadhem Alfardan and Kenny Paterson of the Information + Security Group at Royal Holloway, University of London + (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann + and Michael Tuexen + for preparing the fix. (CVE-2011-4108) + [Robin Seggelmann, Michael Tuexen] + + *) Clear bytes used for block padding of SSL 3.0 records. + (CVE-2011-4576) + [Adam Langley (Google)] + + *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George + Kadianakis for discovering this issue and + Adam Langley for preparing the fix. (CVE-2011-4619) + [Adam Langley (Google)] + + *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) + [Andrey Kulikov ] + + *) Prevent malformed RFC3779 data triggering an assertion failure. + Thanks to Andrew Chi, BBN Technologies, for discovering the flaw + and Rob Austein for fixing it. (CVE-2011-4577) + [Rob Austein ] + + *) Improved PRNG seeding for VOS. + [Paul Green ] + + *) Fix ssl_ciph.c set-up race. + [Adam Langley (Google)] + + *) Fix spurious failures in ecdsatest.c. + [Emilia Käsper (Google)] + + *) Fix the BIO_f_buffer() implementation (which was mixing different + interpretations of the '..._len' fields). + [Adam Langley (Google)] + + *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than + BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent + threads won't reuse the same blinding coefficients. + + This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING + lock to call BN_BLINDING_invert_ex, and avoids one use of + BN_BLINDING_update for each BN_BLINDING structure (previously, + the last update always remained unused). + [Emilia Käsper (Google)] + + *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. + [Bob Buckholz (Google)] + + Changes between 1.0.0d and 1.0.0e [6 Sep 2011] + + *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted + by initialising X509_STORE_CTX properly. (CVE-2011-3207) + [Kaspar Brand ] + + *) Fix SSL memory handling for (EC)DH ciphersuites, in particular + for multi-threaded use of ECDH. (CVE-2011-3210) + [Adam Langley (Google)] + + *) Fix x509_name_ex_d2i memory leak on bad inputs. + [Bodo Moeller] + + *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check + signature public key algorithm by using OID xref utilities instead. + Before this you could only use some ECC ciphersuites with SHA1 only. + [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] + + 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 @@ -1061,12 +2009,190 @@ *) Change 'Configure' script to enable Camellia by default. [NTT] - - Changes between 0.9.8o and 0.9.8p [xx XXX xxxx] + + Changes between 0.9.8x and 0.9.8y [5 Feb 2013] + + *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. + + This addresses the flaw in CBC record processing discovered by + Nadhem Alfardan and Kenny Paterson. Details of this attack can be found + at: http://www.isg.rhul.ac.uk/tls/ + + Thanks go to Nadhem Alfardan and Kenny Paterson of the Information + Security Group at Royal Holloway, University of London + (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and + Emilia Käsper for the initial patch. + (CVE-2013-0169) + [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] + + *) Return an error when checking OCSP signatures when key is NULL. + This fixes a DoS attack. (CVE-2013-0166) + [Steve Henson] + + *) Call OCSP Stapling callback after ciphersuite has been chosen, so + the right response is stapled. Also change SSL_get_certificate() + so it returns the certificate actually sent. + See http://rt.openssl.org/Ticket/Display.html?id=2836. + (This is a backport) + [Rob Stradling ] + + *) Fix possible deadlock when decoding public keys. + [Steve Henson] + + Changes between 0.9.8w and 0.9.8x [10 May 2012] + + *) Sanity check record length before skipping explicit IV in DTLS + to fix 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] + + Changes between 0.9.8v and 0.9.8w [23 Apr 2012] + + *) The fix for CVE-2012-2110 did not take into account that the + 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an + int in OpenSSL 0.9.8, making it still vulnerable. Fix by + rejecting negative len parameter. (CVE-2012-2131) + [Tomas Hoger ] + + Changes between 0.9.8u and 0.9.8v [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] + + Changes between 0.9.8t and 0.9.8u [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 + Ivan Nestlerode for discovering this bug. + [Steve Henson] + + Changes between 0.9.8s and 0.9.8t [18 Jan 2012] + + *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. + Thanks to Antonio Martin, Enterprise Secure Access Research and + Development, Cisco Systems, Inc. for discovering this bug and + preparing a fix. (CVE-2012-0050) + [Antonio Martin] + + Changes between 0.9.8r and 0.9.8s [4 Jan 2012] + + *) Nadhem Alfardan and Kenny Paterson have discovered an extension + of the Vaudenay padding oracle attack on CBC mode encryption + which enables an efficient plaintext recovery attack against + the OpenSSL implementation of DTLS. Their attack exploits timing + differences arising during decryption processing. A research + paper describing this attack can be found at: + http://www.isg.rhul.ac.uk/~kp/dtls.pdf + Thanks go to Nadhem Alfardan and Kenny Paterson of the Information + Security Group at Royal Holloway, University of London + (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann + and Michael Tuexen + for preparing the fix. (CVE-2011-4108) + [Robin Seggelmann, Michael Tuexen] + + *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109) + [Ben Laurie, Kasper ] + + *) Clear bytes used for block padding of SSL 3.0 records. + (CVE-2011-4576) + [Adam Langley (Google)] + + *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George + Kadianakis for discovering this issue and + Adam Langley for preparing the fix. (CVE-2011-4619) + [Adam Langley (Google)] + + *) Prevent malformed RFC3779 data triggering an assertion failure. + Thanks to Andrew Chi, BBN Technologies, for discovering the flaw + and Rob Austein for fixing it. (CVE-2011-4577) + [Rob Austein ] + + *) Fix ssl_ciph.c set-up race. + [Adam Langley (Google)] + + *) Fix spurious failures in ecdsatest.c. + [Emilia Käsper (Google)] + + *) Fix the BIO_f_buffer() implementation (which was mixing different + interpretations of the '..._len' fields). + [Adam Langley (Google)] + + *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than + BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent + threads won't reuse the same blinding coefficients. + + This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING + lock to call BN_BLINDING_invert_ex, and avoids one use of + BN_BLINDING_update for each BN_BLINDING structure (previously, + the last update always remained unused). + [Emilia Käsper (Google)] + + *) Fix SSL memory handling for (EC)DH ciphersuites, in particular + for multi-threaded use of ECDH. + [Adam Langley (Google)] + + *) Fix x509_name_ex_d2i memory leak on bad inputs. + [Bodo Moeller] + + *) 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] + + 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]