Operating System:

[Win]

Published:

09 November 2011

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.1121
    Vulnerability in TCP/IP Could Allow Remote Code Execution (2588516)
                              9 November 2011

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

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

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows Vista
                   Windows Server 2008
                   Windows 7
                   Windows Server 2008 R2
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2011-2013  

Original Bulletin: 
   http://technet.microsoft.com/en-us/security/bulletin/ms11-083

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Microsoft Security Bulletin MS11-083 - Critical
Vulnerability in TCP/IP Could Allow Remote Code Execution (2588516)

Published: Tuesday, November 08, 2011

Version: 1.0

General Information

Executive Summary

This security update resolves a privately reported vulnerability in Microsoft 
Windows. The vulnerability could allow remote code execution if an attacker 
sends a continuous flow of specially crafted UDP packets to a closed port on a 
target system.

This security update is rated Critical for all supported editions of Windows 
Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2. For more 
information, see the subsection, Affected and Non-Affected Software, in this 
section.

Affected Software 

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 and Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems 
  Service Pack 1
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for 
  x64-based Systems Service Pack 1*
Windows Server 2008 R2 for Itanium-based Systems and 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.

Vulnerability Information

Reference Counter Overflow Vulnerability - CVE-2011-2013

A remote code execution vulnerability exists in the Windows TCP/IP stack due to 
the processing of a continuous flow of specially crafted UDP packets. An 
attacker who successfully exploited this vulnerability could run arbitrary code 
in kernel mode. An attacker could then install programs; view, change, or 
delete data; or create new accounts with full user rights.

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