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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
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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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