OpenSSL CHANGES
_______________
- Changes between 1.0.2d and 1.0.2e [xx XXX xxxx]
+ Changes between 1.0.2k and 1.0.2l [xx XXX xxxx]
*)
+ Changes between 1.0.2j and 1.0.2k [26 Jan 2017]
+
+ *) Truncated packet could crash via OOB read
+
+ If one side of an SSL/TLS path is running on a 32-bit host and a specific
+ cipher is being used, then a truncated packet can cause that host to
+ perform an out-of-bounds read, usually resulting in a crash.
+
+ This issue was reported to OpenSSL by Robert Święcki of Google.
+ (CVE-2017-3731)
+ [Andy Polyakov]
+
+ *) BN_mod_exp may produce incorrect results on x86_64
+
+ There is a carry propagating bug in the x86_64 Montgomery squaring
+ procedure. No EC algorithms are affected. Analysis suggests that attacks
+ against RSA and DSA as a result of this defect would be very difficult to
+ perform and are not believed likely. Attacks against DH are considered just
+ feasible (although very difficult) because most of the work necessary to
+ deduce information about a private key may be performed offline. The amount
+ of resources required for such an attack would be very significant and
+ likely only accessible to a limited number of attackers. An attacker would
+ additionally need online access to an unpatched system using the target
+ private key in a scenario with persistent DH parameters and a private
+ key that is shared between multiple clients. For example this can occur by
+ default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very
+ similar to CVE-2015-3193 but must be treated as a separate problem.
+
+ This issue was reported to OpenSSL by the OSS-Fuzz project.
+ (CVE-2017-3732)
+ [Andy Polyakov]
+
+ *) Montgomery multiplication may produce incorrect results
+
+ There is a carry propagating bug in the Broadwell-specific Montgomery
+ multiplication procedure that handles input lengths divisible by, but
+ longer than 256 bits. Analysis suggests that attacks against RSA, DSA
+ and DH private keys are impossible. This is because the subroutine in
+ question is not used in operations with the private key itself and an input
+ of the attacker's direct choice. Otherwise the bug can manifest itself as
+ transient authentication and key negotiation failures or reproducible
+ erroneous outcome of public-key operations with specially crafted input.
+ Among EC algorithms only Brainpool P-512 curves are affected and one
+ presumably can attack ECDH key negotiation. Impact was not analyzed in
+ detail, because pre-requisites for attack are considered unlikely. Namely
+ multiple clients have to choose the curve in question and the server has to
+ share the private key among them, neither of which is default behaviour.
+ Even then only clients that chose the curve will be affected.
+
+ This issue was publicly reported as transient failures and was not
+ initially recognized as a security issue. Thanks to Richard Morgan for
+ providing reproducible case.
+ (CVE-2016-7055)
+ [Andy Polyakov]
+
+ *) OpenSSL now fails if it receives an unrecognised record type in TLS1.0
+ or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to
+ prevent issues where no progress is being made and the peer continually
+ sends unrecognised record types, using up resources processing them.
+ [Matt Caswell]
+
+ Changes between 1.0.2i and 1.0.2j [26 Sep 2016]
+
+ *) Missing CRL sanity check
+
+ A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0
+ but was omitted from OpenSSL 1.0.2i. As a result any attempt to use
+ CRLs in OpenSSL 1.0.2i will crash with a null pointer exception.
+
+ This issue only affects the OpenSSL 1.0.2i
+ (CVE-2016-7052)
+ [Matt Caswell]
+
+ Changes between 1.0.2h and 1.0.2i [22 Sep 2016]
+
+ *) OCSP Status Request extension unbounded memory growth
+
+ A malicious client can send an excessively large OCSP Status Request
+ extension. If that client continually requests renegotiation, sending a
+ large OCSP Status Request extension each time, then there will be unbounded
+ memory growth on the server. This will eventually lead to a Denial Of
+ Service attack through memory exhaustion. Servers with a default
+ configuration are vulnerable even if they do not support OCSP. Builds using
+ the "no-ocsp" build time option are not affected.
+
+ This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
+ (CVE-2016-6304)
+ [Matt Caswell]
+
+ *) In order to mitigate the SWEET32 attack, the DES ciphers were moved from
+ HIGH to MEDIUM.
+
+ This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan
+ Leurent (INRIA)
+ (CVE-2016-2183)
+ [Rich Salz]
+
+ *) OOB write in MDC2_Update()
+
+ An overflow can occur in MDC2_Update() either if called directly or
+ through the EVP_DigestUpdate() function using MDC2. If an attacker
+ is able to supply very large amounts of input data after a previous
+ call to EVP_EncryptUpdate() with a partial block then a length check
+ can overflow resulting in a heap corruption.
+
+ The amount of data needed is comparable to SIZE_MAX which is impractical
+ on most platforms.
+
+ This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
+ (CVE-2016-6303)
+ [Stephen Henson]
+
+ *) Malformed SHA512 ticket DoS
+
+ If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a
+ DoS attack where a malformed ticket will result in an OOB read which will
+ ultimately crash.
+
+ The use of SHA512 in TLS session tickets is comparatively rare as it requires
+ a custom server callback and ticket lookup mechanism.
+
+ This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
+ (CVE-2016-6302)
+ [Stephen Henson]
+
+ *) OOB write in BN_bn2dec()
+
+ The function BN_bn2dec() does not check the return value of BN_div_word().
+ This can cause an OOB write if an application uses this function with an
+ overly large BIGNUM. This could be a problem if an overly large certificate
+ or CRL is printed out from an untrusted source. TLS is not affected because
+ record limits will reject an oversized certificate before it is parsed.
+
+ This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
+ (CVE-2016-2182)
+ [Stephen Henson]
+
+ *) OOB read in TS_OBJ_print_bio()
+
+ The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is
+ the total length the OID text representation would use and not the amount
+ of data written. This will result in OOB reads when large OIDs are
+ presented.
+
+ This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
+ (CVE-2016-2180)
+ [Stephen Henson]
+
+ *) Pointer arithmetic undefined behaviour
+
+ Avoid some undefined pointer arithmetic
+
+ A common idiom in the codebase is to check limits in the following manner:
+ "p + len > limit"
+
+ Where "p" points to some malloc'd data of SIZE bytes and
+ limit == p + SIZE
+
+ "len" here could be from some externally supplied data (e.g. from a TLS
+ message).
+
+ The rules of C pointer arithmetic are such that "p + len" is only well
+ defined where len <= SIZE. Therefore the above idiom is actually
+ undefined behaviour.
+
+ For example this could cause problems if some malloc implementation
+ provides an address for "p" such that "p + len" actually overflows for
+ values of len that are too big and therefore p + len < limit.
+
+ This issue was reported to OpenSSL by Guido Vranken
+ (CVE-2016-2177)
+ [Matt Caswell]
+
+ *) Constant time flag not preserved in DSA signing
+
+ Operations in the DSA signing algorithm should run in constant time in
+ order to avoid side channel attacks. A flaw in the OpenSSL DSA
+ implementation means that a non-constant time codepath is followed for
+ certain operations. This has been demonstrated through a cache-timing
+ attack to be sufficient for an attacker to recover the private DSA key.
+
+ This issue was reported by César Pereida (Aalto University), Billy Brumley
+ (Tampere University of Technology), and Yuval Yarom (The University of
+ Adelaide and NICTA).
+ (CVE-2016-2178)
+ [César Pereida]
+
+ *) DTLS buffered message DoS
+
+ In a DTLS connection where handshake messages are delivered out-of-order
+ those messages that OpenSSL is not yet ready to process will be buffered
+ for later use. Under certain circumstances, a flaw in the logic means that
+ those messages do not get removed from the buffer even though the handshake
+ has been completed. An attacker could force up to approx. 15 messages to
+ remain in the buffer when they are no longer required. These messages will
+ be cleared when the DTLS connection is closed. The default maximum size for
+ a message is 100k. Therefore the attacker could force an additional 1500k
+ to be consumed per connection. By opening many simulataneous connections an
+ attacker could cause a DoS attack through memory exhaustion.
+
+ This issue was reported to OpenSSL by Quan Luo.
+ (CVE-2016-2179)
+ [Matt Caswell]
+
+ *) DTLS replay protection DoS
+
+ A flaw in the DTLS replay attack protection mechanism means that records
+ that arrive for future epochs update the replay protection "window" before
+ the MAC for the record has been validated. This could be exploited by an
+ attacker by sending a record for the next epoch (which does not have to
+ decrypt or have a valid MAC), with a very large sequence number. This means
+ that all subsequent legitimate packets are dropped causing a denial of
+ service for a specific DTLS connection.
+
+ This issue was reported to OpenSSL by the OCAP audit team.
+ (CVE-2016-2181)
+ [Matt Caswell]
+
+ *) Certificate message OOB reads
+
+ In OpenSSL 1.0.2 and earlier some missing message length checks can result
+ in OOB reads of up to 2 bytes beyond an allocated buffer. There is a
+ theoretical DoS risk but this has not been observed in practice on common
+ platforms.
+
+ The messages affected are client certificate, client certificate request
+ and server certificate. As a result the attack can only be performed
+ against a client or a server which enables client authentication.
+
+ This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
+ (CVE-2016-6306)
+ [Stephen Henson]
+
+ Changes between 1.0.2g and 1.0.2h [3 May 2016]
+
+ *) Prevent padding oracle in AES-NI CBC MAC check
+
+ A MITM attacker can use a padding oracle attack to decrypt traffic
+ when the connection uses an AES CBC cipher and the server support
+ AES-NI.
+
+ This issue was introduced as part of the fix for Lucky 13 padding
+ attack (CVE-2013-0169). The padding check was rewritten to be in
+ constant time by making sure that always the same bytes are read and
+ compared against either the MAC or padding bytes. But it no longer
+ checked that there was enough data to have both the MAC and padding
+ bytes.
+
+ This issue was reported by Juraj Somorovsky using TLS-Attacker.
+ (CVE-2016-2107)
+ [Kurt Roeckx]
+
+ *) Fix EVP_EncodeUpdate overflow
+
+ An overflow can occur in the EVP_EncodeUpdate() function which is used for
+ Base64 encoding of binary data. If an attacker is able to supply very large
+ amounts of input data then a length check can overflow resulting in a heap
+ corruption.
+
+ Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by
+ the PEM_write_bio* family of functions. These are mainly used within the
+ OpenSSL command line applications, so any application which processes data
+ from an untrusted source and outputs it as a PEM file should be considered
+ vulnerable to this issue. User applications that call these APIs directly
+ with large amounts of untrusted data may also be vulnerable.
+
+ This issue was reported by Guido Vranken.
+ (CVE-2016-2105)
+ [Matt Caswell]
+
+ *) Fix EVP_EncryptUpdate overflow
+
+ An overflow can occur in the EVP_EncryptUpdate() function. If an attacker
+ is able to supply very large amounts of input data after a previous call to
+ EVP_EncryptUpdate() with a partial block then a length check can overflow
+ resulting in a heap corruption. Following an analysis of all OpenSSL
+ internal usage of the EVP_EncryptUpdate() function all usage is one of two
+ forms. The first form is where the EVP_EncryptUpdate() call is known to be
+ the first called function after an EVP_EncryptInit(), and therefore that
+ specific call must be safe. The second form is where the length passed to
+ EVP_EncryptUpdate() can be seen from the code to be some small value and
+ therefore there is no possibility of an overflow. Since all instances are
+ one of these two forms, it is believed that there can be no overflows in
+ internal code due to this problem. It should be noted that
+ EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths.
+ Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances
+ of these calls have also been analysed too and it is believed there are no
+ instances in internal usage where an overflow could occur.
+
+ This issue was reported by Guido Vranken.
+ (CVE-2016-2106)
+ [Matt Caswell]
+
+ *) Prevent ASN.1 BIO excessive memory allocation
+
+ When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio()
+ a short invalid encoding can casuse allocation of large amounts of memory
+ potentially consuming excessive resources or exhausting memory.
+
+ Any application parsing untrusted data through d2i BIO functions is
+ affected. The memory based functions such as d2i_X509() are *not* affected.
+ Since the memory based functions are used by the TLS library, TLS
+ applications are not affected.
+
+ This issue was reported by Brian Carpenter.
+ (CVE-2016-2109)
+ [Stephen Henson]
+
+ *) EBCDIC overread
+
+ ASN1 Strings that are over 1024 bytes can cause an overread in applications
+ using the X509_NAME_oneline() function on EBCDIC systems. This could result
+ in arbitrary stack data being returned in the buffer.
+
+ This issue was reported by Guido Vranken.
+ (CVE-2016-2176)
+ [Matt Caswell]
+
+ *) Modify behavior of ALPN to invoke callback after SNI/servername
+ callback, such that updates to the SSL_CTX affect ALPN.
+ [Todd Short]
+
+ *) Remove LOW from the DEFAULT cipher list. This removes singles DES from the
+ default.
+ [Kurt Roeckx]
+
+ *) Only remove the SSLv2 methods with the no-ssl2-method option. When the
+ methods are enabled and ssl2 is disabled the methods return NULL.
+ [Kurt Roeckx]
+
+ Changes between 1.0.2f and 1.0.2g [1 Mar 2016]
+
+ * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
+ Builds that are not configured with "enable-weak-ssl-ciphers" will not
+ provide any "EXPORT" or "LOW" strength ciphers.
+ [Viktor Dukhovni]
+
+ * Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2
+ is by default disabled at build-time. Builds that are not configured with
+ "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used,
+ users who want to negotiate SSLv2 via the version-flexible SSLv23_method()
+ will need to explicitly call either of:
+
+ SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2);
+ or
+ SSL_clear_options(ssl, SSL_OP_NO_SSLv2);
+
+ as appropriate. Even if either of those is used, or the application
+ explicitly uses the version-specific SSLv2_method() or its client and
+ server variants, SSLv2 ciphers vulnerable to exhaustive search key
+ recovery have been removed. Specifically, the SSLv2 40-bit EXPORT
+ ciphers, and SSLv2 56-bit DES are no longer available.
+ (CVE-2016-0800)
+ [Viktor Dukhovni]
+
+ *) Fix a double-free in DSA code
+
+ A double free bug was discovered when OpenSSL parses malformed DSA private
+ keys and could lead to a DoS attack or memory corruption for applications
+ that receive DSA private keys from untrusted sources. This scenario is
+ considered rare.
+
+ This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using
+ libFuzzer.
+ (CVE-2016-0705)
+ [Stephen Henson]
+
+ *) Disable SRP fake user seed to address a server memory leak.
+
+ Add a new method SRP_VBASE_get1_by_user that handles the seed properly.
+
+ SRP_VBASE_get_by_user had inconsistent memory management behaviour.
+ In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user
+ was changed to ignore the "fake user" SRP seed, even if the seed
+ is configured.
+
+ Users should use SRP_VBASE_get1_by_user instead. Note that in
+ SRP_VBASE_get1_by_user, caller must free the returned value. Note
+ also that even though configuring the SRP seed attempts to hide
+ invalid usernames by continuing the handshake with fake
+ credentials, this behaviour is not constant time and no strong
+ guarantees are made that the handshake is indistinguishable from
+ that of a valid user.
+ (CVE-2016-0798)
+ [Emilia Käsper]
+
+ *) Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
+
+ In the BN_hex2bn function the number of hex digits is calculated using an
+ int value |i|. Later |bn_expand| is called with a value of |i * 4|. For
+ large values of |i| this can result in |bn_expand| not allocating any
+ memory because |i * 4| is negative. This can leave the internal BIGNUM data
+ field as NULL leading to a subsequent NULL ptr deref. For very large values
+ of |i|, the calculation |i * 4| could be a positive value smaller than |i|.
+ In this case memory is allocated to the internal BIGNUM data field, but it
+ is insufficiently sized leading to heap corruption. A similar issue exists
+ in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn
+ is ever called by user applications with very large untrusted hex/dec data.
+ This is anticipated to be a rare occurrence.
+
+ All OpenSSL internal usage of these functions use data that is not expected
+ to be untrusted, e.g. config file data or application command line
+ arguments. If user developed applications generate config file data based
+ on untrusted data then it is possible that this could also lead to security
+ consequences. This is also anticipated to be rare.
+
+ This issue was reported to OpenSSL by Guido Vranken.
+ (CVE-2016-0797)
+ [Matt Caswell]
+
+ *) Fix memory issues in BIO_*printf functions
+
+ The internal |fmtstr| function used in processing a "%s" format string in
+ the BIO_*printf functions could overflow while calculating the length of a
+ string and cause an OOB read when printing very long strings.
+
+ Additionally the internal |doapr_outch| function can attempt to write to an
+ OOB memory location (at an offset from the NULL pointer) in the event of a
+ memory allocation failure. In 1.0.2 and below this could be caused where
+ the size of a buffer to be allocated is greater than INT_MAX. E.g. this
+ could be in processing a very long "%s" format string. Memory leaks can
+ also occur.
+
+ The first issue may mask the second issue dependent on compiler behaviour.
+ These problems could enable attacks where large amounts of untrusted data
+ is passed to the BIO_*printf functions. If applications use these functions
+ in this way then they could be vulnerable. OpenSSL itself uses these
+ functions when printing out human-readable dumps of ASN.1 data. Therefore
+ applications that print this data could be vulnerable if the data is from
+ untrusted sources. OpenSSL command line applications could also be
+ vulnerable where they print out ASN.1 data, or if untrusted data is passed
+ as command line arguments.
+
+ Libssl is not considered directly vulnerable. Additionally certificates etc
+ received via remote connections via libssl are also unlikely to be able to
+ trigger these issues because of message size limits enforced within libssl.
+
+ This issue was reported to OpenSSL Guido Vranken.
+ (CVE-2016-0799)
+ [Matt Caswell]
+
+ *) Side channel attack on modular exponentiation
+
+ A side-channel attack was found which makes use of cache-bank conflicts on
+ the Intel Sandy-Bridge microarchitecture which could lead to the recovery
+ of RSA keys. The ability to exploit this issue is limited as it relies on
+ an attacker who has control of code in a thread running on the same
+ hyper-threaded core as the victim thread which is performing decryptions.
+
+ This issue was reported to OpenSSL by Yuval Yarom, The University of
+ Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and
+ Nadia Heninger, University of Pennsylvania with more information at
+ http://cachebleed.info.
+ (CVE-2016-0702)
+ [Andy Polyakov]
+
+ *) Change the req app to generate a 2048-bit RSA/DSA key by default,
+ if no keysize is specified with default_bits. This fixes an
+ omission in an earlier change that changed all RSA/DSA key generation
+ apps to use 2048 bits by default.
+ [Emilia Käsper]
+
+ Changes between 1.0.2e and 1.0.2f [28 Jan 2016]
+
+ *) DH small subgroups
+
+ Historically OpenSSL only ever generated DH parameters based on "safe"
+ primes. More recently (in version 1.0.2) support was provided for
+ generating X9.42 style parameter files such as those required for RFC 5114
+ support. The primes used in such files may not be "safe". Where an
+ application is using DH configured with parameters based on primes that are
+ not "safe" then an attacker could use this fact to find a peer's private
+ DH exponent. This attack requires that the attacker complete multiple
+ handshakes in which the peer uses the same private DH exponent. For example
+ this could be used to discover a TLS server's private DH exponent if it's
+ reusing the private DH exponent or it's using a static DH ciphersuite.
+
+ OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in
+ TLS. It is not on by default. If the option is not set then the server
+ reuses the same private DH exponent for the life of the server process and
+ would be vulnerable to this attack. It is believed that many popular
+ applications do set this option and would therefore not be at risk.
+
+ The fix for this issue adds an additional check where a "q" parameter is
+ available (as is the case in X9.42 based parameters). This detects the
+ only known attack, and is the only possible defense for static DH
+ ciphersuites. This could have some performance impact.
+
+ Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by
+ default and cannot be disabled. This could have some performance impact.
+
+ This issue was reported to OpenSSL by Antonio Sanso (Adobe).
+ (CVE-2016-0701)
+ [Matt Caswell]
+
+ *) SSLv2 doesn't block disabled ciphers
+
+ A malicious client can negotiate SSLv2 ciphers that have been disabled on
+ the server and complete SSLv2 handshakes even if all SSLv2 ciphers have
+ been disabled, provided that the SSLv2 protocol was not also disabled via
+ SSL_OP_NO_SSLv2.
+
+ This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram
+ and Sebastian Schinzel.
+ (CVE-2015-3197)
+ [Viktor Dukhovni]
+
+ *) Reject DH handshakes with parameters shorter than 1024 bits.
+ [Kurt Roeckx]
+
+ Changes between 1.0.2d and 1.0.2e [3 Dec 2015]
+
+ *) BN_mod_exp may produce incorrect results on x86_64
+
+ There is a carry propagating bug in the x86_64 Montgomery squaring
+ procedure. No EC algorithms are affected. Analysis suggests that attacks
+ against RSA and DSA as a result of this defect would be very difficult to
+ perform and are not believed likely. Attacks against DH are considered just
+ feasible (although very difficult) because most of the work necessary to
+ deduce information about a private key may be performed offline. The amount
+ of resources required for such an attack would be very significant and
+ likely only accessible to a limited number of attackers. An attacker would
+ additionally need online access to an unpatched system using the target
+ private key in a scenario with persistent DH parameters and a private
+ key that is shared between multiple clients. For example this can occur by
+ default in OpenSSL DHE based SSL/TLS ciphersuites.
+
+ This issue was reported to OpenSSL by Hanno Böck.
+ (CVE-2015-3193)
+ [Andy Polyakov]
+
+ *) Certificate verify crash with missing PSS parameter
+
+ The signature verification routines will crash with a NULL pointer
+ dereference if presented with an ASN.1 signature using the RSA PSS
+ algorithm and absent mask generation function parameter. Since these
+ routines are used to verify certificate signature algorithms 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.
+
+ This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
+ (CVE-2015-3194)
+ [Stephen Henson]
+
+ *) X509_ATTRIBUTE memory leak
+
+ When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
+ memory. This structure is used by the PKCS#7 and CMS routines so any
+ application which reads PKCS#7 or CMS data from untrusted sources is
+ affected. SSL/TLS is not affected.
+
+ This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
+ libFuzzer.
+ (CVE-2015-3195)
+ [Stephen Henson]
+
+ *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
+ This changes the decoding behaviour for some invalid messages,
+ though the change is mostly in the more lenient direction, and
+ legacy behaviour is preserved as much as possible.
+ [Emilia Käsper]
+
+ *) In DSA_generate_parameters_ex, if the provided seed is too short,
+ use a random seed, as already documented.
+ [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
+
Changes between 1.0.2c and 1.0.2d [9 Jul 2015]
*) Alternate chains certificate forgery
This issue was reported to OpenSSL by Adam Langley/David Benjamin
(Google/BoringSSL).
+ (CVE-2015-1793)
[Matt Caswell]
+ *) Race condition handling PSK identify hint
+
+ If PSK identity hints are received by a multi-threaded client then
+ the values are wrongly updated in the parent SSL_CTX structure. This can
+ result in a race condition potentially leading to a double free of the
+ identify hint data.
+ (CVE-2015-3196)
+ [Stephen Henson]
+
Changes between 1.0.2b and 1.0.2c [12 Jun 2015]
*) Fix HMAC ABI incompatibility. The previous version introduced an ABI
Changes between 1.0.1l and 1.0.2 [22 Jan 2015]
+ *) Change RSA and DH/DSA key generation apps to generate 2048-bit
+ keys by default.
+ [Kurt Roeckx]
+
*) 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
projects / openssl.git / blobdiff