Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1886) Local Information Disclosure Vulnerability

Bugtraq ID:	48607
Class:	Design Error
CVE:	CVE-2011-1886
Remote:	No
Local:	Yes
Published:	Jul 12 2011 12:00AM
Updated:	Jul 13 2011 05:10PM
Credit:	Mr. Liang Yin, Prof. Sihan Qing and Weiping Wen, and Mr. Husheng Zhou, Department of Information Security, Beijing University
Vulnerable:	Microsoft Windows XP Tablet PC Edition SP3 Microsoft Windows XP Tablet PC Edition SP2 Microsoft Windows XP Tablet PC Edition SP1 Microsoft Windows XP Tablet PC Edition Microsoft Windows XP Service Pack 3 0 Microsoft Windows XP Professional SP3 Microsoft Windows XP Professional SP2 Microsoft Windows XP Professional SP1 Microsoft Windows XP Professional Microsoft Windows XP Media Center Edition 2005 SP3 Microsoft Windows XP Media Center Edition SP3 Microsoft Windows XP Media Center Edition SP2 Microsoft Windows XP Media Center Edition SP1 Microsoft Windows XP Media Center Edition Microsoft Windows XP Home SP3 Microsoft Windows XP Home SP2 Microsoft Windows XP Home SP1 Microsoft Windows XP Home Microsoft Windows XP Gold 0 Microsoft Windows XP Embedded SP3 Microsoft Windows XP Embedded SP2 Microsoft Windows XP Embedded SP1 Microsoft Windows XP Embedded Microsoft Windows XP Gold Tablet Pc Microsoft Windows XP Gold Professional Microsoft Windows XP Gold Media Center Microsoft Windows XP Gold Embedded Microsoft Windows XP 0 Microsoft Windows XP 0 Microsoft Windows XP - Sp1 X64 Microsoft Windows XP - Gold X64 Microsoft Windows XP - Gold Home Avaya Messaging Application Server 5.2 Avaya Messaging Application Server 5 Avaya Messaging Application Server 4 Avaya Meeting Exchange - Webportal 0 Avaya Meeting Exchange - Web Conferencing Server 0 Avaya Meeting Exchange - Streaming Server 0 Avaya Meeting Exchange - Recording Server 0 Avaya Meeting Exchange - Client Registration Server 0 Avaya Meeting Exchange 5.0 .0.52 Avaya Meeting Exchange 5.2 SP2 Avaya Meeting Exchange 5.2 SP1 Avaya Meeting Exchange 5.2 Avaya Meeting Exchange 5.1 SP1 Avaya Meeting Exchange 5.1 Avaya Meeting Exchange 5.0 SP2 Avaya Meeting Exchange 5.0 SP1 Avaya Meeting Exchange 5.0 Avaya Communication Server 1000 Telephony Manager 4.0 Avaya Communication Server 1000 Telephony Manager 3.0 Avaya CallPilot 5.0 Avaya CallPilot 4.0 Avaya Aura Conferencing 6.0 Standard
Not Vulnerable:

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1886) Local Information Disclosure Vulnerability

Microsoft Windows is prone to a local information-disclosure vulnerability that occurs in the Windows kernel because it fails to properly validate certain function parameters.

Successfully exploiting this issue allows attackers to obtain sensitive information that may aid in further attacks.

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1886) Local Information Disclosure Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1886) Local Information Disclosure Vulnerability

Solution:
Vendor updates are available. Please see the referenced advisory for more information.


Microsoft Windows XP Embedded SP3

• Microsoft Security Update for Windows XP (KB2555917)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 760

Microsoft Windows XP Media Center Edition SP3

• Microsoft Security Update for Windows XP (KB2555917)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 760

Microsoft Windows XP Home SP3

• Microsoft Security Update for Windows XP (KB2555917)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 760

Microsoft Windows XP Professional SP3

• Microsoft Security Update for Windows XP (KB2555917)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 760

Microsoft Windows XP Tablet PC Edition SP3

• Microsoft Security Update for Windows XP (KB2555917)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 760

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1886) Local Information Disclosure Vulnerability

References:

• Microsoft Windows Homepage (Microsoft)
  
• ASA-2011-202 MS11-054 Vulnerabilities in Windows Kernel-Mode Drivers Could Allow (Avaya)
  
• Microsoft Security Bulletin MS11-054 - Important (Microsoft)