diff options
Diffstat (limited to 'CHANGES')
| -rw-r--r-- | CHANGES | 356 |
1 files changed, 77 insertions, 279 deletions
@@ -2,6 +2,83 @@ OpenSSL CHANGES _______________ + Changes between 1.0.1l and 1.0.1m [19 Mar 2015] + + *) Segmentation fault in ASN1_TYPE_cmp fix + + The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is + made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check + certificate signature algorithm consistency this can be used to crash any + certificate verification operation and exploited in a DoS attack. Any + application which performs certificate verification is vulnerable including + OpenSSL clients and servers which enable client authentication. + (CVE-2015-0286) + [Stephen Henson] + + *) ASN.1 structure reuse memory corruption fix + + Reusing a structure in ASN.1 parsing may allow an attacker to cause + memory corruption via an invalid write. Such reuse is and has been + strongly discouraged and is believed to be rare. + + Applications that parse structures containing CHOICE or ANY DEFINED BY + components may be affected. Certificate parsing (d2i_X509 and related + functions) are however not affected. OpenSSL clients and servers are + not affected. + (CVE-2015-0287) + [Stephen Henson] + + *) PKCS7 NULL pointer dereferences fix + + The PKCS#7 parsing code does not handle missing outer ContentInfo + correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with + missing content and trigger a NULL pointer dereference on parsing. + + Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or + otherwise parse PKCS#7 structures from untrusted sources are + affected. OpenSSL clients and servers are not affected. + + This issue was reported to OpenSSL by Michal Zalewski (Google). + (CVE-2015-0289) + [Emilia Käsper] + + *) DoS via reachable assert in SSLv2 servers fix + + A malicious client can trigger an OPENSSL_assert (i.e., an abort) in + servers that both support SSLv2 and enable export cipher suites by sending + a specially crafted SSLv2 CLIENT-MASTER-KEY message. + + This issue was discovered by Sean Burford (Google) and Emilia Käsper + (OpenSSL development team). + (CVE-2015-0293) + [Emilia Käsper] + + *) Use After Free following d2i_ECPrivatekey error fix + + A malformed EC private key file consumed via the d2i_ECPrivateKey function + could cause a use after free condition. This, in turn, could cause a double + free in several private key parsing functions (such as d2i_PrivateKey + or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption + for applications that receive EC private keys from untrusted + sources. This scenario is considered rare. + + This issue was discovered by the BoringSSL project and fixed in their + commit 517073cd4b. + (CVE-2015-0209) + [Matt Caswell] + + *) X509_to_X509_REQ NULL pointer deref fix + + The function X509_to_X509_REQ will crash with a NULL pointer dereference if + the certificate key is invalid. This function is rarely used in practice. + + This issue was discovered by Brian Carpenter. + (CVE-2015-0288) + [Stephen Henson] + + *) Removed the export ciphers from the DEFAULT ciphers + [Kurt Roeckx] + Changes between 1.0.1k and 1.0.1l [15 Jan 2015] *) Build fixes for the Windows and OpenVMS platforms @@ -771,63 +848,6 @@ Add command line options to s_client/s_server. [Steve Henson] - 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 <rob.stradling@comodo.com>] - - *) 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 <agl@chromium.org> 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 @@ -1818,228 +1838,6 @@ *) Change 'Configure' script to enable Camellia by default. [NTT] - 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 <rob.stradling@comodo.com>] - - *) 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 <thoger@redhat.com>] - - 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 <agl@chromium.org> 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 <inestlerode@us.ibm.com> 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 <inestlerode@us.ibm.com> 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 - <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> - 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 <ekasper@google.com>] - - *) 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 <desnacked@gmail.com> 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 <sra@hactrn.net> for fixing it. (CVE-2011-4577) - [Rob Austein <sra@hactrn.net>] - - *) 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] - - *) Don't reencode certificate when calculating signature: cache and use - the original encoding instead. This makes signature verification of - some broken encodings work correctly. - [Steve Henson] - - *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT - is also one of the inputs. - [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)] - - *) Don't repeatedly append PBE algorithms to table if they already exist. - Sort table on each new add. This effectively makes the table read only - after all algorithms are added and subsequent calls to PKCS12_pbe_add - etc are non-op. - [Steve Henson] - - Changes between 0.9.8n and 0.9.8o [01 Jun 2010] - - [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after - OpenSSL 1.0.0.] - - *) Correct a typo in the CMS ASN1 module which can result in invalid memory - access or freeing data twice (CVE-2010-0742) - [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>] - - *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more - common in certificates and some applications which only call - SSL_library_init and not OpenSSL_add_all_algorithms() will fail. - [Steve Henson] - - *) VMS fixes: - Reduce copying into .apps and .test in makevms.com - Don't try to use blank CA certificate in CA.com - Allow use of C files from original directories in maketests.com - [Steven M. Schweda" <sms@antinode.info>] - Changes between 0.9.8m and 0.9.8n [24 Mar 2010] *) When rejecting SSL/TLS records due to an incorrect version number, never |