OpenSSL CHANGES
_______________
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]
Security fix for CVS-2012-2131.
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>]
NEWS
====
This file gives a brief overview of the major changes between each OpenSSL
release. For more details please read the CHANGES file.
Major changes between OpenSSL 0.9.8u and OpenSSL 0.9.8v:
o Fix for ASN1 overflow bug CVE-2012-2110
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]
OpenSSL CHANGES
_______________
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]
OpenSSL CHANGES
_______________
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. (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 Käóper (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 Käóper (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]
by Billy Bob Brumley and Nicola Tuveri, see:
http://eprint.iacr.org/2011/232.pdf
[Billy Bob Brumley and Nicola Tuveri]
(patch confirmed in upstream cvs)
OpenSSL version 0.9.8q released
===============================
OpenSSL - The Open Source toolkit for SSL/TLS
http://www.openssl.org/
The OpenSSL project team is pleased to announce the release of
version 0.9.8q of our open source toolkit for SSL/TLS. This new
OpenSSL version is a security and bugfix release. For a complete
list of changes, please see
http://www.openssl.org/source/exp/CHANGES.
The most significant changes are:
o Fix for security issue CVE-2010-4180
o Fix for CVE-2010-4252
OpenSSL version 0.9.8p released
===============================
OpenSSL - The Open Source toolkit for SSL/TLS
http://www.openssl.org/
The OpenSSL project team is pleased to announce the release of
version 0.9.8p of our open source toolkit for SSL/TLS. This new
OpenSSL version is a security and bugfix release which addresses
CVE-2010-3864. For a complete list of changes,
please see http://www.openssl.org/source/exp/CHANGES.
OpenSSL CHANGES
_______________
Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
*) 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
update s->server with a new major version number. As of
- OpenSSL 0.9.8m if 'short' is a 16-bit type,
- OpenSSL 0.9.8f if 'short' is longer than 16 bits,
the previous behavior could result in a read attempt at NULL when
receiving specific incorrect SSL/TLS records once record payload
protection is active. (CVE-2010-0740)
[Bodo Moeller, Adam Langley <agl@chromium.org>]
*) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
could be crashed if the relevant tables were not present (e.g. chrooted).
[Tomas Hoger <thoger@redhat.com>]
The OpenSSL project team is pleased to announce the release of
version 0.9.8m of our open source toolkit for SSL/TLS. This new
OpenSSL version is a security and bugfix release which implements
RFC5746 to address renegotiation vulnerabilities mentioned in
CVE-2009-3555. For a complete list of changes,
please see http://www.openssl.org/source/exp/CHANGES.
Approved by agc@.
Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
*) Disable renegotiation completely - this fixes a severe security
problem (CVE-2009-3555) at the cost of breaking all
renegotiation. Renegotiation can be re-enabled by setting
SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
run-time. This is really not recommended unless you know what
you're doing.
[Ben Laurie]
* Not only interix-3, but also treat all interix release, allow to build on SUA.
* Gave up randomized image base, use 0x5e000000, as in mk/platform/Interix.mk.
It is workaround of PR 42369.
* Use -D_REENTRANT flags for threads.
* replace -Wl,soname= linker flags with -Wl,h, for Interix
Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
*) Don't set val to NULL when freeing up structures, it is freed up by
underlying code. If sizeof(void *) > sizeof(long) this can result in
zeroing past the valid field. (CVE-2009-0789)
*) Fix bug where return value of CMS_SignerInfo_verify_content() was not
checked correctly. This would allow some invalid signed attributes to
appear to verify correctly. (CVE-2009-0591)
*) Reject UniversalString and BMPString types with invalid lengths. This
prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
a legal length. (CVE-2009-0590)
*) Set S/MIME signing as the default purpose rather than setting it
unconditionally. This allows applications to override it at the store
level.
*) Permit restricted recursion of ASN1 strings. This is needed in practice
to handle some structures.
*) Improve efficiency of mem_gets: don't search whole buffer each time
for a '\n'
*) New -hex option for openssl rand.
*) Print out UTF8String and NumericString when parsing ASN1.
*) Support NumericString type for name components.
*) Allow CC in the environment to override the automatically chosen
compiler. Note that nothing is done to ensure flags work with the
chosen compiler.
Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
*) Properly check EVP_VerifyFinal() and similar return values
(CVE-2008-5077).
*) Allow the CHIL engine to be loaded, whether the application is
multithreaded or not. (This does not release the developer from the
obligation to set up the dynamic locking callbacks.)
*) Use correct exit code if there is an error in dgst command.
*) Tweak Configure so that you need to say "experimental-jpake" to enable
JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
*) Add experimental JPAKE support, including demo authentication in
s_client and s_server.
*) Set the comparison function in v3_addr_canonize().
*) Add support for XMPP STARTTLS in s_client.
*) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
to ensure that even with this option, only ciphersuites in the
server's preference list will be accepted. (Note that the option
applies only when resuming a session, so the earlier behavior was
just about the algorithm choice for symmetric cryptography.)
Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
*) Fix a state transitition in s3_srvr.c and d1_srvr.c
(was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
*) The fix in 0.9.8c that supposedly got rid of unsafe
double-checked locking was incomplete for RSA blinding,
addressing just one layer of what turns out to have been
doubly unsafe triple-checked locking.
So now fix this for real by retiring the MONT_HELPER macro
in crypto/rsa/rsa_eay.c.
*) Various precautionary measures:
- Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
- Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
(NB: This would require knowledge of the secret session ticket key
to exploit, in which case you'd be SOL either way.)
- Change bn_nist.c so that it will properly handle input BIGNUMs
outside the expected range.
- Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
builds.
*) Allow engines to be "soft loaded" - i.e. optionally don't die if
the load fails. Useful for distros.
*) Add support for Local Machine Keyset attribute in PKCS#12 files.
*) Fix BN_GF2m_mod_arr() top-bit cleanup code.
*) Expand ENGINE to support engine supplied SSL client certificate functions.
This work was sponsored by Logica.
*) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
keystores. Support for SSL/TLS client authentication too.
Not compiled unless enable-capieng specified to Configure.
This work was sponsored by Logica.
*) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
attribute creation routines such as certifcate requests and PKCS#12
files.
Two crashes discovered using the Codenomicon TLS test suite, as reported
in CVE-2008-0891 and CVE-2008-1672, were fixed. The root CA certificates
of commercial CAs were removed from the distribution. Functions were added
to implement RFC3394 compatible AES key wrapping. Utility functions to
handle ASN1 structures were added. The certificate status request TLS
extension, as defined in RFC3546, was implemented. Several other bugfixes
and enhancements were made.
- Fix flaw if 'Server Key exchange message' is omitted from a TLS handshake
which could lead to a silent crash.
- Fix double free in TLS server name extensions which could lead to a remote
crash.
Patches from upstream.
pkgsrc notes:
o Tested on NetBSD/i386 (Jukka Salmi), Mac OSX 10.5 (Adrian Portelli),
Linux (Jeremy C. Reed), Tru64 5.1b (tnn), HP-UX 11i (tnn).
Because the Makefile system has been rewamped, other
platforms may require fixes. Please test if you can.
o OpenSSL can now be built with installation to DESTDIR.
Overview of important changes since 0.9.7i:
o Add gcc 4.2 support.
o DTLS improvements.
o RFC4507bis support.
o TLS Extensions support.
o RFC3779 support.
o New cipher Camellia
o Updated ECC cipher suite support.
o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
o Zlib compression usage fixes.
o Major work on the BIGNUM library for higher efficiency and to
make operations more streamlined and less contradictory. This
is the result of a major audit of the BIGNUM library.
o Addition of BIGNUM functions for fields GF(2^m) and NIST
curves, to support the Elliptic Crypto functions.
o Major work on Elliptic Crypto; ECDH and ECDSA added, including
the use through EVP, X509 and ENGINE.
o New ASN.1 mini-compiler that's usable through the OpenSSL
configuration file.
o Added support for ASN.1 indefinite length constructed encoding.
o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
o Complete rework of shared library construction and linking
programs with shared or static libraries, through a separate
Makefile.shared.
o Rework of the passing of parameters from one Makefile to another.
o Changed ENGINE framework to load dynamic engine modules
automatically from specifically given directories.
o New structure and ASN.1 functions for CertificatePair.
o Changed the key-generation and primality testing "progress"
mechanism to take a structure that contains the ticker
function and an argument.
o New engine module: GMP (performs private key exponentiation).
o New engine module: VIA PadLOck ACE extension in VIA C3
Nehemiah processors.
o Added support for IPv6 addresses in certificate extensions.
See RFC 1884, section 2.2.
o Added support for certificate policy mappings, policy
constraints and name constraints.
o Added support for multi-valued AVAs in the OpenSSL
configuration file.
o Added support for multiple certificates with the same subject
in the 'openssl ca' index file.
o Make it possible to create self-signed certificates using
'openssl ca -selfsign'.
o Make it possible to generate a serial number file with
'openssl ca -create_serial'.
o New binary search functions with extended functionality.
o New BUF functions.
o New STORE structure and library to provide an interface to all
sorts of data repositories. Supports storage of public and
private keys, certificates, CRLs, numbers and arbitrary blobs.
This library is unfortunately unfinished and unused withing
OpenSSL.
o New control functions for the error stack.
o Changed the PKCS#7 library to support one-pass S/MIME
processing.
o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
o New X509_VERIFY_PARAM structure to support parametrisation
of X.509 path validation.
o Change the default digest in 'openssl' commands from MD5 to
SHA-1.
o Added support for DTLS.
o New BIGNUM blinding.
o Added support for the RSA-PSS encryption scheme
o Added support for the RSA X.931 padding.
o Added support for files larger than 2GB.
o Added alternate pkg-config files.
0.9.7h include fixing a shared library upgrade problem where openssl-0.9.7h
had a different ABI than previous 0.9.7 sub-revisions due to a changed
constant.
vulnerability triggered update due to CAN-2005-2969. Changes from
version 0.9.7f include:
o Fix SSL 2.0 Rollback, CAN-2005-2969
o Allow use of fixed-length exponent on DSA signing
o Default fixed-window RSA, DSA, DH private-key operations
o More compilation issues fixed.
o Adaptation to more modern Kerberos API.
o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
o Enhanced x86_64 assembler BIGNUM module.
o More constification.
o Added processing of proxy certificates (RFC 3820).
Pkgsrc changes from version 0.9.7e include:
*) Install the man pages with names that are less likely to collide
with other packages' man pages.
*) Support PKG_OPTIONS of "idea", "mdc2" and "rc5" to allow building
with patented algorithms. By default, this package still builds
without patented algorithms.
Major changes from version 0.9.7e include:
*) Prompt for pass phrases when appropriate for PKCS12 input format.
*) Back-port of selected performance improvements from development
branch, as well as improved support for PowerPC platforms.
*) Add lots of checks for memory allocation failure, error codes to indicate
failure and freeing up memory if a failure occurs.
*) Add new -passin argument to dgst.
*) Make an explicit check during certificate validation to see that
the CA setting in each certificate on the chain is correct.
because:
- its behaviour changes between releases
- it uses build-host specific instructions where possible,
specifically on >= Solaris 9 update 6 and Sun Studio 9 (sse, sse2)
this breaks using the binary pkg when installed on systems with a
less capable processor. instead, just use -xO5 so the binary pkg will
work everywhere.
so that the appropriate OpenSSL sources are built. Also, explicitly
mark the endianness of each supported NetBSD platform to avoid potential
endianness issues when doing the crypto arithmetic.
