X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=CHANGES;h=06bfdd299c94058e3f9223c9e22c9fa1b4154d3c;hb=c5fbf8c1ba4e116ab7efc5487a0ce8518718bbd7;hp=518a462b6b12fc89ffbd8748db3e8142d7adea49;hpb=e18eef3d7ab9a6b4f229d95c8d32d25c66243103;p=oweals%2Fopenssl.git diff --git a/CHANGES b/CHANGES index 518a462b6b..06bfdd299c 100644 --- a/CHANGES +++ b/CHANGES @@ -2,7 +2,357 @@ OpenSSL CHANGES _______________ - Changes between 0.9.8b and 0.9.8c [xx XXX xxxx] + Changes between 0.9.8g and 0.9.8h [xx XXX xxxx] + + *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 + implemention in the following ways: + + Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be + hard coded. + + Lack of BER streaming support means one pass streaming processing is + only supported if data is detached: setting the streaming flag is + ignored for embedded content. + + CMS support is disabled by default and must be explicitly enabled + with the enable-cms configuration option. + [Steve Henson] + + *) Zlib compression BIO. This is a filter BIO which compressed and + uncompresses any data passed through it. + [Steve Henson] + + *) Add AES_wrap_key() and AES_unwrap_key() functions to implement + RFC3394 compatible AES key wrapping. + [Steve Henson] + + *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): + sets string data without copying. X509_ALGOR_set0() and + X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) + data. Attribute function X509at_get0_data_by_OBJ(): retrieves data + from an X509_ATTRIBUTE structure optionally checking it occurs only + once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied + data. + [Steve Henson] + + *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() + to get the expected BN_FLG_CONSTTIME behavior. + [Bodo Moeller (Google)] + + *) Netware support: + + - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets + - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) + - added some more tests to do_tests.pl + - fixed RunningProcess usage so that it works with newer LIBC NDKs too + - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency + - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, + netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc + - various changes to netware.pl to enable gcc-cross builds on Win32 + platform + - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) + - various changes to fix missing prototype warnings + - fixed x86nasm.pl to create correct asm files for NASM COFF output + - added AES, WHIRLPOOL and CPUID assembler code to build files + - added missing AES assembler make rules to mk1mf.pl + - fixed order of includes in apps/ocsp.c so that e_os.h settings apply + [Guenter Knauf ] + + *) Implement certificate status request TLS extension defined in RFC3546. + A client can set the appropriate parameters and receive the encoded + OCSP response via a callback. A server can query the supplied parameters + and set the encoded OCSP response in the callback. Add simplified examples + to s_client and s_server. + [Steve Henson] + + Changes between 0.9.8f and 0.9.8g [19 Oct 2007] + + *) Fix various bugs: + + Binary incompatibility of ssl_ctx_st structure + + DTLS interoperation with non-compliant servers + + Don't call get_session_cb() without proposed session + + Fix ia64 assembler code + [Andy Polyakov, Steve Henson] + + Changes between 0.9.8e and 0.9.8f [11 Oct 2007] + + *) DTLS Handshake overhaul. There were longstanding issues with + OpenSSL DTLS implementation, which were making it impossible for + RFC 4347 compliant client to communicate with OpenSSL server. + Unfortunately just fixing these incompatibilities would "cut off" + pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e + server keeps tolerating non RFC compliant syntax. The opposite is + not true, 0.9.8f client can not communicate with earlier server. + This update even addresses CVE-2007-4995. + [Andy Polyakov] + + *) Changes to avoid need for function casts in OpenSSL: some compilers + (gcc 4.2 and later) reject their use. + [Kurt Roeckx , Peter Hartley , + Steve Henson] + + *) Add RFC4507 support to OpenSSL. This includes the corrections in + RFC4507bis. The encrypted ticket format is an encrypted encoded + SSL_SESSION structure, that way new session features are automatically + supported. + + If a client application caches session in an SSL_SESSION structure + support is transparent because tickets are now stored in the encoded + SSL_SESSION. + + The SSL_CTX structure automatically generates keys for ticket + protection in servers so again support should be possible + with no application modification. + + If a client or server wishes to disable RFC4507 support then the option + SSL_OP_NO_TICKET can be set. + + Add a TLS extension debugging callback to allow the contents of any client + or server extensions to be examined. + + This work was sponsored by Google. + [Steve Henson] + + *) Add initial support for TLS extensions, specifically for the server_name + extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now + have new members for a host name. The SSL data structure has an + additional member SSL_CTX *initial_ctx so that new sessions can be + stored in that context to allow for session resumption, even after the + SSL has been switched to a new SSL_CTX in reaction to a client's + server_name extension. + + New functions (subject to change): + + SSL_get_servername() + SSL_get_servername_type() + SSL_set_SSL_CTX() + + New CTRL codes and macros (subject to change): + + SSL_CTRL_SET_TLSEXT_SERVERNAME_CB + - SSL_CTX_set_tlsext_servername_callback() + SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG + - SSL_CTX_set_tlsext_servername_arg() + SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() + + openssl s_client has a new '-servername ...' option. + + openssl s_server has new options '-servername_host ...', '-cert2 ...', + '-key2 ...', '-servername_fatal' (subject to change). This allows + testing the HostName extension for a specific single host name ('-cert' + and '-key' remain fallbacks for handshakes without HostName + negotiation). If the unrecogninzed_name alert has to be sent, this by + default is a warning; it becomes fatal with the '-servername_fatal' + option. + + [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] + + *) Add AES and SSE2 assembly language support to VC++ build. + [Steve Henson] + + *) Mitigate attack on final subtraction in Montgomery reduction. + [Andy Polyakov] + + *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 + (which previously caused an internal error). + [Bodo Moeller] + + *) Squeeze another 10% out of IGE mode when in != out. + [Ben Laurie] + + *) AES IGE mode speedup. + [Dean Gaudet (Google)] + + *) Add the Korean symmetric 128-bit cipher SEED (see + http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and + add SEED ciphersuites from RFC 4162: + + TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" + TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" + TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" + TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" + + To minimize changes between patchlevels in the OpenSSL 0.9.8 + series, SEED remains excluded from compilation unless OpenSSL + is configured with 'enable-seed'. + [KISA, Bodo Moeller] + + *) Mitigate branch prediction attacks, which can be practical if a + single processor is shared, allowing a spy process to extract + information. For detailed background information, see + http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, + J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL + and Necessary Software Countermeasures"). The core of the change + are new versions BN_div_no_branch() and + BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), + respectively, which are slower, but avoid the security-relevant + conditional branches. These are automatically called by BN_div() + and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one + of the input BIGNUMs. Also, BN_is_bit_set() has been changed to + remove a conditional branch. + + BN_FLG_CONSTTIME is the new name for the previous + BN_FLG_EXP_CONSTTIME flag, since it now affects more than just + modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag + in the exponent causes BN_mod_exp_mont() to use the alternative + implementation in BN_mod_exp_mont_consttime().) The old name + remains as a deprecated alias. + + Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general + RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses + constant-time implementations for more than just exponentiation. + Here too the old name is kept as a deprecated alias. + + BN_BLINDING_new() will now use BN_dup() for the modulus so that + the BN_BLINDING structure gets an independent copy of the + modulus. This means that the previous "BIGNUM *m" argument to + BN_BLINDING_new() and to BN_BLINDING_create_param() now + essentially becomes "const BIGNUM *m", although we can't actually + change this in the header file before 0.9.9. It allows + RSA_setup_blinding() to use BN_with_flags() on the modulus to + enable BN_FLG_CONSTTIME. + + [Matthew D Wood (Intel Corp)] + + *) 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] + + *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that + a ciphersuite string such as "DEFAULT:RSA" cannot enable + authentication-only ciphersuites. + [Bodo Moeller] + + *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was + not complete and could lead to a possible single byte overflow + (CVE-2007-5135) [Ben Laurie] + + Changes between 0.9.8d and 0.9.8e [23 Feb 2007] + + *) Since AES128 and AES256 (and similarly Camellia128 and + Camellia256) share a single mask bit in the logic of + ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a + kludge to work properly if AES128 is available and AES256 isn't + (or if Camellia128 is available and Camellia256 isn't). + [Victor Duchovni] + + *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c + (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): + When a point or a seed is encoded in a BIT STRING, we need to + prevent the removal of trailing zero bits to get the proper DER + encoding. (By default, crypto/asn1/a_bitstr.c assumes the case + of a NamedBitList, for which trailing 0 bits need to be removed.) + [Bodo Moeller] + + *) Have SSL/TLS server implementation tolerate "mismatched" record + protocol version while receiving ClientHello even if the + ClientHello is fragmented. (The server can't insist on the + particular protocol version it has chosen before the ServerHello + message has informed the client about his choice.) + [Bodo Moeller] + + *) Add RFC 3779 support. + [Rob Austein for ARIN, Ben Laurie] + + *) Load error codes if they are not already present instead of using a + static variable. This allows them to be cleanly unloaded and reloaded. + Improve header file function name parsing. + [Steve Henson] + + *) extend SMTP and IMAP protocol emulation in s_client to use EHLO + or CAPABILITY handshake as required by RFCs. + [Goetz Babin-Ebell] + + Changes between 0.9.8c and 0.9.8d [28 Sep 2006] + + *) Introduce limits to prevent malicious keys being able to + cause a denial of service. (CVE-2006-2940) + [Steve Henson, Bodo Moeller] + + *) Fix ASN.1 parsing of certain invalid structures that can result + in a denial of service. (CVE-2006-2937) [Steve Henson] + + *) Fix buffer overflow in SSL_get_shared_ciphers() function. + (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] + + *) Fix SSL client code which could crash if connecting to a + malicious SSLv2 server. (CVE-2006-4343) + [Tavis Ormandy and Will Drewry, Google Security Team] + + *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites + match only those. Before that, "AES256-SHA" would be interpreted + as a pattern and match "AES128-SHA" too (since AES128-SHA got + the same strength classification in 0.9.7h) as we currently only + have a single AES bit in the ciphersuite description bitmap. + That change, however, also applied to ciphersuite strings such as + "RC4-MD5" that intentionally matched multiple ciphersuites -- + namely, SSL 2.0 ciphersuites in addition to the more common ones + from SSL 3.0/TLS 1.0. + + So we change the selection algorithm again: Naming an explicit + ciphersuite selects this one ciphersuite, and any other similar + ciphersuite (same bitmap) from *other* protocol versions. + Thus, "RC4-MD5" again will properly select both the SSL 2.0 + ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. + + Since SSL 2.0 does not have any ciphersuites for which the + 128/256 bit distinction would be relevant, this works for now. + The proper fix will be to use different bits for AES128 and + AES256, which would have avoided the problems from the beginning; + however, bits are scarce, so we can only do this in a new release + (not just a patchlevel) when we can change the SSL_CIPHER + definition to split the single 'unsigned long mask' bitmap into + multiple values to extend the available space. + + [Bodo Moeller] + + Changes between 0.9.8b and 0.9.8c [05 Sep 2006] + + *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher + (CVE-2006-4339) [Ben Laurie and Google Security Team] + + *) Add AES IGE and biIGE modes. + [Ben Laurie] + + *) Change the Unix randomness entropy gathering to use poll() when + possible instead of select(), since the latter has some + undesirable limitations. + [Darryl Miles via Richard Levitte and Bodo Moeller] + + *) Disable "ECCdraft" ciphersuites more thoroughly. Now special + treatment in ssl/ssl_ciph.s makes sure that these ciphersuites + cannot be implicitly activated as part of, e.g., the "AES" alias. + However, please upgrade to OpenSSL 0.9.9[-dev] for + non-experimental use of the ECC ciphersuites to get TLS extension + support, which is required for curve and point format negotiation + to avoid potential handshake problems. + [Bodo Moeller] + + *) Disable rogue ciphersuites: + + - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") + - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") + - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") + + The latter two were purportedly from + draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really + appear there. + + Also deactivate the remaining ciphersuites from + draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as + unofficial, and the ID has long expired. + [Bodo Moeller] + + *) Fix RSA blinding Heisenbug (problems sometimes occured on + dual-core machines) and other potential thread-safety issues. + [Bodo Moeller] *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key versions), which is now available for royalty-free use @@ -104,6 +454,9 @@ Changes between 0.9.7h and 0.9.8 [05 Jul 2005] + [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after + OpenSSL 0.9.8.] + *) Add libcrypto.pc and libssl.pc for those who feel they need them. [Richard Levitte] @@ -921,6 +1274,129 @@ 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 + sensitive data. + [Benjamin Bennett ] + + *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that + a ciphersuite string such as "DEFAULT:RSA" cannot enable + authentication-only ciphersuites. + [Bodo Moeller] + + *) Since AES128 and AES256 share a single mask bit in the logic of + ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a + kludge to work properly if AES128 is available and AES256 isn't. + [Victor Duchovni] + + *) Expand security boundary to match 1.1.1 module. + [Steve Henson] + + *) Remove redundant features: hash file source, editing of test vectors + modify fipsld to use external fips_premain.c signature. + [Steve Henson] + + *) New perl script mkfipsscr.pl to create shell scripts or batch files to + run algorithm test programs. + [Steve Henson] + + *) Make algorithm test programs more tolerant of whitespace. + [Steve Henson] + + *) Have SSL/TLS server implementation tolerate "mismatched" record + protocol version while receiving ClientHello even if the + ClientHello is fragmented. (The server can't insist on the + particular protocol version it has chosen before the ServerHello + message has informed the client about his choice.) + [Bodo Moeller] + + *) Load error codes if they are not already present instead of using a + static variable. This allows them to be cleanly unloaded and reloaded. + [Steve Henson] + + Changes between 0.9.7k and 0.9.7l [28 Sep 2006] + + *) Introduce limits to prevent malicious keys being able to + cause a denial of service. (CVE-2006-2940) + [Steve Henson, Bodo Moeller] + + *) Fix ASN.1 parsing of certain invalid structures that can result + in a denial of service. (CVE-2006-2937) [Steve Henson] + + *) Fix buffer overflow in SSL_get_shared_ciphers() function. + (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] + + *) Fix SSL client code which could crash if connecting to a + malicious SSLv2 server. (CVE-2006-4343) + [Tavis Ormandy and Will Drewry, Google Security Team] + + *) Change ciphersuite string processing so that an explicit + ciphersuite selects this one ciphersuite (so that "AES256-SHA" + will no longer include "AES128-SHA"), and any other similar + ciphersuite (same bitmap) from *other* protocol versions (so that + "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the + SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining + changes from 0.9.8b and 0.9.8d. + [Bodo Moeller] + + Changes between 0.9.7j and 0.9.7k [05 Sep 2006] + + *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher + (CVE-2006-4339) [Ben Laurie and Google Security Team] + + *) Change the Unix randomness entropy gathering to use poll() when + possible instead of select(), since the latter has some + undesirable limitations. + [Darryl Miles via Richard Levitte and Bodo Moeller] + + *) Disable rogue ciphersuites: + + - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") + - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") + - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") + + The latter two were purportedly from + draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really + appear there. + + Also deactive the remaining ciphersuites from + draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as + unofficial, and the ID has long expired. + [Bodo Moeller] + + *) Fix RSA blinding Heisenbug (problems sometimes occured on + dual-core machines) and other potential thread-safety issues. + [Bodo Moeller] + + Changes between 0.9.7i and 0.9.7j [04 May 2006] + + *) Adapt fipsld and the build system to link against the validated FIPS + module in FIPS mode. + [Steve Henson] + + *) Fixes for VC++ 2005 build under Windows. + [Steve Henson] + + *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make + from a Windows bash shell such as MSYS. It is autodetected from the + "config" script when run from a VC++ environment. Modify standard VC++ + build to use fipscanister.o from the GNU make build. + [Steve Henson] + Changes between 0.9.7h and 0.9.7i [14 Oct 2005] *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.