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Diffstat (limited to 'openssl/CHANGES')
-rw-r--r-- | openssl/CHANGES | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/openssl/CHANGES b/openssl/CHANGES index 277b46f17..b5b3dd20f 100644 --- a/openssl/CHANGES +++ b/openssl/CHANGES @@ -2,6 +2,465 @@ OpenSSL CHANGES _______________ + Changes between 1.0.1l and 1.0.2 [22 Jan 2015] + + *) SRTP Memory Leak. + + A flaw in the DTLS SRTP extension parsing code allows an attacker, who + sends a carefully crafted handshake message, to cause OpenSSL to fail + to free up to 64k of memory causing a memory leak. This could be + exploited in a Denial Of Service attack. This issue affects OpenSSL + 1.0.1 server implementations for both SSL/TLS and DTLS regardless of + whether SRTP is used or configured. Implementations of OpenSSL that + have been compiled with OPENSSL_NO_SRTP defined are not affected. + + The fix was developed by the OpenSSL team. + (CVE-2014-3513) + [OpenSSL team] + + *) Session Ticket Memory Leak. + + When an OpenSSL SSL/TLS/DTLS server receives a session ticket the + integrity of that ticket is first verified. In the event of a session + ticket integrity check failing, OpenSSL will fail to free memory + causing a memory leak. By sending a large number of invalid session + tickets an attacker could exploit this issue in a Denial Of Service + attack. + (CVE-2014-3567) + [Steve Henson] + + *) Build option no-ssl3 is incomplete. + + When OpenSSL is configured with "no-ssl3" as a build option, servers + could accept and complete a SSL 3.0 handshake, and clients could be + configured to send them. + (CVE-2014-3568) + [Akamai and the OpenSSL team] + + *) Add support for TLS_FALLBACK_SCSV. + Client applications doing fallback retries should call + SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). + (CVE-2014-3566) + [Adam Langley, Bodo Moeller] + + *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. + ARMv5 through ARMv8, as opposite to "locking" it to single one. + So far those who have to target multiple plaforms would compromise + and argue that binary targeting say ARMv5 would still execute on + ARMv8. "Universal" build resolves this compromise by providing + near-optimal performance even on newer platforms. + [Andy Polyakov] + + *) Accelerated NIST P-256 elliptic curve implementation for x86_64 + (other platforms pending). + [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov] + + *) Add support for the SignedCertificateTimestampList certificate and + OCSP response extensions from RFC6962. + [Rob Stradling] + + *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) + for corner cases. (Certain input points at infinity could lead to + bogus results, with non-infinity inputs mapped to infinity too.) + [Bodo Moeller] + + *) Initial support for PowerISA 2.0.7, first implemented in POWER8. + This covers AES, SHA256/512 and GHASH. "Initial" means that most + common cases are optimized and there still is room for further + improvements. Vector Permutation AES for Altivec is also added. + [Andy Polyakov] + + *) Add support for little-endian ppc64 Linux target. + [Marcelo Cerri (IBM)] + + *) Initial support for AMRv8 ISA crypto extensions. This covers AES, + SHA1, SHA256 and GHASH. "Initial" means that most common cases + are optimized and there still is room for further improvements. + Both 32- and 64-bit modes are supported. + [Andy Polyakov, Ard Biesheuvel (Linaro)] + + *) Improved ARMv7 NEON support. + [Andy Polyakov] + + *) Support for SPARC Architecture 2011 crypto extensions, first + implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, + SHA256/512, MD5, GHASH and modular exponentiation. + [Andy Polyakov, David Miller] + + *) Accelerated modular exponentiation for Intel processors, a.k.a. + RSAZ. + [Shay Gueron & Vlad Krasnov (Intel Corp)] + + *) Support for new and upcoming Intel processors, including AVX2, + BMI and SHA ISA extensions. This includes additional "stitched" + implementations, AESNI-SHA256 and GCM, and multi-buffer support + for TLS encrypt. + + This work was sponsored by Intel Corp. + [Andy Polyakov] + + *) 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] + + *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): + this fixes a limiation in previous versions of OpenSSL. + [Steve Henson] + + *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, + MGF1 digest and OAEP label. + [Steve Henson] + + *) 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] + + *) Add functions to allocate and set the fields of an ECDSA_METHOD + structure. + [Douglas E. Engert, Steve Henson] + + *) 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 <trevp@trevp.net> 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 <rob.stradling@comodo.com> 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] + + *) 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] + + *) New function i2d_re_X509_tbs for re-encoding the TBS portion of + the certificate. + Note: Related 1.0.2-beta specific macros X509_get_cert_info, + X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and + X509_CINF_get_signature were reverted post internal team review. + + Changes between 1.0.1k and 1.0.1l [15 Jan 2015] + + *) Build fixes for the Windows and OpenVMS platforms + [Matt Caswell and Richard Levitte] + + Changes between 1.0.1j and 1.0.1k [8 Jan 2015] + + *) Abort handshake if server key exchange message is omitted for ephemeral + ECDH ciphersuites. + + Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for + reporting this issue. + (CVE-2014-3572) + [Steve Henson] + + *) Remove non-export ephemeral RSA code on client and server. This code + violated the TLS standard by allowing the use of temporary RSA keys in + non-export ciphersuites and could be used by a server to effectively + downgrade the RSA key length used to a value smaller than the server + certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at + INRIA or reporting this issue. + (CVE-2015-0204) + [Steve Henson] + + *) Ensure that the session ID context of an SSL is updated when its + SSL_CTX is updated via SSL_set_SSL_CTX. + + The session ID context is typically set from the parent SSL_CTX, + and can vary with the CTX. + [Adam Langley] + + *) Fix various certificate fingerprint issues. + + By using non-DER or invalid encodings outside the signed portion of a + certificate the fingerprint can be changed without breaking the signature. + Although no details of the signed portion of the certificate can be changed + this can cause problems with some applications: e.g. those using the + certificate fingerprint for blacklists. + + 1. Reject signatures with non zero unused bits. + + If the BIT STRING containing the signature has non zero unused bits reject + the signature. All current signature algorithms require zero unused bits. + + 2. Check certificate algorithm consistency. + + Check the AlgorithmIdentifier inside TBS matches the one in the + certificate signature. NB: this will result in signature failure + errors for some broken certificates. + + Thanks to Konrad Kraszewski from Google for reporting this issue. + + 3. Check DSA/ECDSA signatures use DER. + + Reencode DSA/ECDSA signatures and compare with the original received + signature. Return an error if there is a mismatch. + + This will reject various cases including garbage after signature + (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS + program for discovering this case) and use of BER or invalid ASN.1 INTEGERs + (negative or with leading zeroes). + + Further analysis was conducted and fixes were developed by Stephen Henson + of the OpenSSL core team. + + (CVE-2014-8275) + [Steve Henson] + + *) Do not resume sessions on the server if the negotiated protocol + version does not match the session's version. Resuming with a different + version, while not strictly forbidden by the RFC, is of questionable + sanity and breaks all known clients. + [David Benjamin, Emilia Käsper] + + *) Tighten handling of the ChangeCipherSpec (CCS) message: reject + early CCS messages during renegotiation. (Note that because + renegotiation is encrypted, this early CCS was not exploitable.) + [Emilia Käsper] + + *) Tighten client-side session ticket handling during renegotiation: + ensure that the client only accepts a session ticket if the server sends + the extension anew in the ServerHello. Previously, a TLS client would + reuse the old extension state and thus accept a session ticket if one was + announced in the initial ServerHello. + + Similarly, ensure that the client requires a session ticket if one + was advertised in the ServerHello. Previously, a TLS client would + ignore a missing NewSessionTicket message. + [Emilia Käsper] + Changes between 1.0.1i and 1.0.1j [15 Oct 2014] *) SRTP Memory Leak. @@ -139,6 +598,18 @@ bogus results, with non-infinity inputs mapped to infinity too.) [Bodo Moeller] + Changes between 1.0.1i and 1.0.1j [xx XXX xxxx] + + *) Add additional DigestInfo checks. + + Reencode DigestInto in DER and check against the original when + verifying RSA signature: this will reject any improperly encoded + DigestInfo structures. + + Note: this is a precautionary measure and no attacks are currently known. + + [Steve Henson] + Changes between 1.0.1g and 1.0.1h [5 Jun 2014] *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted |