CHANGES

 OpenSSL CHANGES
 _______________

 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]

  *) 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]

  *) 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 1.0.1h and 1.0.1i [6 Aug 2014]

  *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
     SRP code can be overrun an internal buffer. Add sanity check that
     g, A, B < N to SRP code.

     Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
     Group for discovering this issue.
     (CVE-2014-3512)
     [Steve Henson]

  *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
     TLS 1.0 instead of higher protocol versions when the ClientHello message
     is badly fragmented. This allows a man-in-the-middle attacker to force a
     downgrade to TLS 1.0 even if both the server and the client support a
     higher protocol version, by modifying the client's TLS records.

     Thanks to David Benjamin and Adam Langley (Google) for discovering and
     researching this issue.
     (CVE-2014-3511)
     [David Benjamin]

  *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
     to a denial of service attack. A malicious server can crash the client
     with a null pointer dereference (read) by specifying an anonymous (EC)DH
     ciphersuite and sending carefully crafted handshake messages.

     Thanks to Felix Gröbert (Google) for discovering and researching this
     issue.
     (CVE-2014-3510)
     [Emilia Käsper]

  *) By sending carefully crafted DTLS packets an attacker could cause openssl
     to leak memory. This can be exploited through a Denial of Service attack.
     Thanks to Adam Langley for discovering and researching this issue.
     (CVE-2014-3507)
     [Adam Langley]

  *) An attacker can force openssl to consume large amounts of memory whilst
     processing DTLS handshake messages. This can be exploited through a
     Denial of Service attack.
     Thanks to Adam Langley for discovering and researching this issue.
     (CVE-2014-3506)
     [Adam Langley]

  *) An attacker can force an error condition which causes openssl to crash
     whilst processing DTLS packets due to memory being freed twice. This
     can be exploited through a Denial of Service attack.
     Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
     this issue.
     (CVE-2014-3505)
     [Adam Langley]

  *) If a multithreaded client connects to a malicious server using a resumed
     session and the server sends an ec point format extension it could write
     up to 255 bytes to freed memory.

     Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
     issue.
     (CVE-2014-3509)
     [Gabor Tyukasz]

  *) A malicious server can crash an OpenSSL client with a null pointer
     dereference (read) by specifying an SRP ciphersuite even though it was not
     properly negotiated with the client. This can be exploited through a
     Denial of Service attack.

     Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
     discovering and researching this issue.
     (CVE-2014-5139)
     [Steve Henson]

  *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
     X509_name_oneline, X509_name_print_ex et al. to leak some information
     from the stack. Applications may be affected if they echo pretty printing
     output to the attacker.

     Thanks to Ivan Fratric (Google) for discovering this issue.
     (CVE-2014-3508)
     [Emilia Käsper, and Steve Henson]

  *) 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]

 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]

  *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
     handshake can force the use of weak keying material in OpenSSL
     SSL/TLS clients and servers.

     Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
     researching this issue. (CVE-2014-0224)
     [KIKUCHI Masashi, Steve Henson]

  *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
     OpenSSL DTLS client the code can be made to recurse eventually crashing
     in a DoS attack.

     Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
     (CVE-2014-0221)
     [Imre Rad, Steve Henson]

  *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
     be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
     client or server. This is potentially exploitable to run arbitrary
     code on a vulnerable client or server.

     Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
     [Jüri Aedla, Steve Henson]

  *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
     are subject to a denial of service attack.

     Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
     this issue. (CVE-2014-3470)
     [Felix Gröbert, Ivan Fratric, Steve Henson]

  *) Harmonize version and its documentation. -f flag is used to display
     compilation flags.
     [mancha <mancha1@zoho.com>]

  *) Fix eckey_priv_encode so it immediately returns an error upon a failure
     in i2d_ECPrivateKey.
     [mancha <mancha1@zoho.com>]

  *) Fix some double frees. These are not thought to be exploitable.
     [mancha <mancha1@zoho.com>]

 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]

  *) A missing bounds check in the handling of the TLS heartbeat extension
     can be used to reveal up to 64k of memory to a connected client or
     server.

     Thanks for Neel Mehta of Google Security for discovering this bug and to
     Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
     preparing the fix (CVE-2014-0160)
     [Adam Langley, Bodo Moeller]

  *) Fix for the attack described in the paper "Recovering OpenSSL
     ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
     by Yuval Yarom and Naomi Benger. Details can be obtained from:
     http://eprint.iacr.org/2014/140