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Author Topic: Security: OpenSSL 1.0.1i updates available for Apache 2.4.10 & 2.2.27  (Read 2183 times)

Gregg

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OpenSSL 1.0.1i updates are available for download now. These are primarily security updates and it is suggested that you update your server as soon as possible.

Update packages can be found on our download page.

  OpenSSL 1.0.1i Changes

  *) 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]

  *) 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]

  *) 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]

  *) 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 Gr
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