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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0467
              Invalid TLS/DTLS record attack (CVE-2012-2333)
                                14 May 2012

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           OpenSSL
Publisher:         OpenSSL
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-2333  

Original Bulletin: 
   http://www.openssl.org/news/secadv_20120510.txt

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OpenSSL Security Advisory [10 May 2012]
=======================================

Invalid TLS/DTLS record attack (CVE-2012-2333)
===============================================

A flaw in the OpenSSL handling of CBC mode ciphersuites in TLS 1.1, 1.2 and
DTLS can be exploited in a denial of service attack on both clients and
servers.

DTLS applications are affected in all versions of OpenSSL. TLS is only
affected in OpenSSL 1.0.1 and later.

Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic fuzzing
as a service testing platform.

The fix was developed by Stephen Henson of the OpenSSL core team.

Affected users should upgrade to OpenSSL 1.0.1c, 1.0.0j or 0.9.8x

References
==========

URL for this Security Advisory:
http://www.openssl.org/news/secadv_20120510.txt

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===========================================================================
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The University of Queensland
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