OpenSSL CHANGES
_______________
- Changes between 1.0.2 and 1.1.0 [xx XXX xxxx]
+ Changes between 1.0.2e and 1.1.0 [xx XXX xxxx]
+
+ *) Add support for setting the minimum and maximum supported protocol.
+ It can bet set via the SSL_set_min_proto_version() and
+ SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and
+ MaxProtcol. It's recommended to use the new APIs to disable
+ protocols instead of disabling individual protocols using
+ SSL_set_options() or SSL_CONF's Protocol. This change also
+ removes support for disabling TLS 1.2 in the OpenSSL TLS
+ client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT.
+ [Kurt Roeckx]
+
+ *) Support for ChaCha20 and Poly1305 added to libcrypto and libssl.
+ [Andy Polyakov]
+
+ *) New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD
+ and integrates ECDSA and ECDH functionality into EC. Implementations can
+ now redirect key generation and no longer need to convert to or from
+ ECDSA_SIG format.
+
+ Note: the ecdsa.h and ecdh.h headers are now no longer needed and just
+ include the ec.h header file instead.
+ [Steve Henson]
+
+ *) Remove support for all 40 and 56 bit ciphers. This includes all the export
+ ciphers who are no longer supported and drops support the ephemeral RSA key
+ exchange. The LOW ciphers currently doesn't have any ciphers in it.
+ [Kurt Roeckx]
+
+ *) Make EVP_MD_CTX, EVP_MD and HMAC_CTX opaque. For HMAC_CTX, the
+ following constructors and destructors were added:
+
+ HMAC_CTX *HMAC_CTX_new(void);
+ void HMAC_CTX_free(HMAC_CTX *ctx);
+
+ For EVP_MD, a complete API to create, fill and destroy such
+ methods has been added. See EVP_MD_meth_new(3) for
+ documentation.
+
+ Additional changes:
+ 1) HMAC_CTX_cleanup() and EVP_MD_CTX_cleanup() were removed,
+ HMAC_CTX_init() and EVP_MD_CTX_init() should be called instead
+ to reinitialise and already created structure. Also,
+ HMAC_CTX_init() and EVP_MD_CTX_init() now return 0 for failure
+ and 1 for success (they previously had the return type void).
+ 2) For consistency with the majority of our object creators and
+ destructors, EVP_MD_CTX_(create|destroy) were renamed to
+ EVP_MD_CTX_(new|free). The old names are retained as macros
+ for deprecated builds.
+ [Richard Levitte]
+
+ *) Added ASYNC support. Libcrypto now includes the async sub-library to enable
+ cryptographic operations to be performed asynchronously as long as an
+ asynchronous capable engine is used. See the ASYNC_start_job() man page for
+ further details. Libssl has also had this capability integrated with the
+ introduction of the new mode SSL_MODE_ASYNC and associated error
+ SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man
+ pages. This work was developed in partnership with Intel Corp.
+ [Matt Caswell]
+
+ *) SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is
+ always enabled now. If you want to disable the support you should
+ exclude it using the list of supported ciphers. This also means that the
+ "-no_ecdhe" option has been removed from s_server.
+ [Kurt Roeckx]
+
+ *) SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls
+ SSL_{CTX_}set1_curves() which can set a list.
+ [Kurt Roeckx]
+
+ *) Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the
+ curve you want to support using SSL_{CTX_}set1_curves().
+ [Kurt Roeckx]
*) State machine rewrite. The state machine code has been significantly
refactored in order to remove much duplication of code and solve issues
with the old code (see ssl/statem/README for further details). This change
- does have some associated API changes. Notably SSL_get_state/SSL_state now
- returns an "enum HANDSHAKE_STATE" instead of an int. The previous handshake
- states defined in ssl.h and ssl3.h have been redefined to be the nearest
- equivalent HANDSHAKE_STATE value. Not all states have an equivalent value,
- (e.g. SSL_ST_CW_FLUSH). New application code should not use the old
- handshake state values, but should instead use HANDSHAKE_STATE.
+ does have some associated API changes. Notably the SSL_state() function
+ has been removed and replaced by SSL_get_state which now returns an
+ "OSSL_HANDSHAKE_STATE" instead of an int. SSL_set_state() has been removed
+ altogether. The previous handshake states defined in ssl.h and ssl3.h have
+ also been removed.
[Matt Caswell]
+ *) All instances of the string "ssleay" in the public API were replaced
+ with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's)
+ Some error codes related to internal RSA_eay API's were renamed.
+ [Rich Salz]
+
*) The demo files in crypto/threads were moved to demo/threads.
[Rich Salz]
- *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron and sureware.
- [Matt Caswell]
+ *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp,
+ and sureware.
+ [Matt Caswell, Rich Salz]
*) New ASN.1 embed macro.
though the change is mostly in the more lenient direction, and
legacy behaviour is preserved as much as possible.
[Emilia Käsper]
+
*) Fix no-stdio build.
[ David Woodhouse <David.Woodhouse@intel.com> and also
Ivan Nestlerode <ivan.nestlerode@sonos.com> ]
output file readable only by the owner. This behavior change might
be noticeable when interacting with other software.
+ *) Documented all exdata functions. Added CRYPTO_free_ex_index.
+ Added a test.
+ [Rich Salz]
+
*) Added HTTP GET support to the ocsp command.
[Rich Salz]
+ *) Changed default digest for the dgst and enc commands from MD5 to
+ sha256
+ [Rich Salz]
+
*) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead.
[Matt Caswell]
*) Added support for OCB mode. OpenSSL has been granted a patent license
compatible with the OpenSSL license for use of OCB. Details are available
- at https://www.openssl.org/docs/misc/OCB-patent-grant-OpenSSL.pdf. Support
+ at https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf. Support
for OCB can be removed by calling config with no-ocb.
[Matt Caswell]
whose return value is often ignored.
[Steve Henson]
+ 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,
+ return an error
+ [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
projects / openssl.git / blobdiff