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             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.0719
         Vulnerability in Bluetooth Stack Could Allow Remote Code
                            Execution (2566220)
                               13 July 2011

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

Product:           Windows Bluetooth Stack
Publisher:         Microsoft
Operating System:  Windows Vista
                   Windows 7
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2011-1265  

Original Bulletin: 
   http://www.microsoft.com/technet/security/Bulletin/MS11-053.mspx

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Microsoft Security Bulletin MS11-053 - Critical
Vulnerability in Bluetooth Stack Could Allow Remote Code Execution (2566220)
Published: July 12, 2011

Version: 1.0

General Information

Executive Summary

This security update resolves a privately reported vulnerability in the Windows 
Bluetooth Stack. The vulnerability could allow remote code execution if an 
attacker sent a series of specially crafted Bluetooth packets to an affected 
system. An attacker could then install programs; view, change, or delete data; 
or create new accounts with full user rights. This vulnerability only affects 
systems with Bluetooth capability.

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

Affected Software

Windows Vista Service Pack 1[1]
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 1[1]
Windows Vista x64 Edition 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

[1] Windows Vista Service Pack 1 is only affected when the optional Windows 
Vista Feature Pack for Wireless has been installed. See the update FAQ for 
details.

Vulnerability Information

Bluetooth Stack Vulnerability - CVE-2011-1265

A remote code execution vulnerability exists in the Windows Bluetooth 2.1 Stack 
due to the way an object in memory is accessed when it has not been correctly 
initialized or has been deleted. An attacker could exploit the vulnerability by 
constructing a series of specially crafted Bluetooth packets and sending them 
to the target machine. An attacker could then install programs; view, change, 
or delete data; or create new accounts with full user rights.

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