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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0044
   Vulnerability in SSL/TLS Could Allow Information Disclosure (2643584)
                              11 January 2012

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

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows XP
                   Windows Server 2003
                   Windows Vista
                   Windows Server 2008
                   Windows 7
                   Windows Server 2008 R2
Impact/Access:     Access Privileged Data -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2011-3389  

Reference:         ASB-2012.0003
                   ASB-2011.0092
                   ESB-2011.1273
                   ESB-2011.1041
                   ESB-2011.0979
                   ASB-2011.0071.2

Original Bulletin: 
   http://technet.microsoft.com/en-us/security/bulletin/ms12-006

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Microsoft Security Bulletin MS12-006 - Important

Vulnerability in SSL/TLS Could Allow Information Disclosure (2643584)

Published Date: January 10, 2012

Version: 1.0

General Information

Executive Summary

This security update resolves a publicly disclosed vulnerability in SSL 3.0
and TLS 1.0. This vulnerability affects the protocol itself and is not specific
to the Windows operating system. The vulnerability could allow information
disclosure if an attacker intercepts encrypted web traffic served from an
affected system. TLS 1.1, TLS 1.2, and all cipher suites that do not use CBC
mode are not affected.

This security update is rated Important for all supported releases of Microsoft
Windows. For more information, see the subsection, Affected Software, in this
section.

Affected Software

Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2*
Windows Server 2008 for x64-based Systems Service Pack 2*
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems*
Windows Server 2008 R2 for x64-based Systems Service Pack 1*
Windows Server 2008 R2 for Itanium-based Systems
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1

*Server Core installation affected. This update applies, with the same severity
rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2
as indicated, whether or not installed using the Server Core installation
option. For more information on this installation option, see the TechNet
articles, Managing a Server Core Installation and Servicing a Server Core
Installation. Note that the Server Core installation option does not apply to
certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare
Server Core Installation Options.

SSL and TLS Protocols Vulnerability - CVE-2011-3389

An information disclosure vulnerability exists in SSL 3.0 and TLS 1.0
encryption protocols. This vulnerability affects the protocol itself and is not
specific to the Windows operating system. This is an information disclosure
vulnerability that allows the decryption of encrypted SSL/TLS traffic. This
vulnerability primarily impacts HTTPS traffic, since the browser is the primary
attack vector, and all web traffic served via HTTPS or mixed content HTTP/HTTPS
is affected.

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===========================================================================
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The University of Queensland
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Internet Email: auscert@auscert.org.au
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