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

Description

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.

Technologies Affected

• Avaya Aura Conferencing 6.0 Standard
• Avaya CallPilot 4.0
• Avaya CallPilot 5.0
• Avaya Communication Server 1000 Telephony Manager 3.0
• Avaya Communication Server 1000 Telephony Manager 4.0
• Avaya Meeting Exchange - Client Registration Server
• Avaya Meeting Exchange - Recording Server
• Avaya Meeting Exchange - Streaming Server
• Avaya Meeting Exchange - Web Conferencing Server
• Avaya Meeting Exchange - Webportal
• Avaya Meeting Exchange 5.0
• Avaya Meeting Exchange 5.0 SP1
• Avaya Meeting Exchange 5.0 SP2
• Avaya Meeting Exchange 5.0.0.0.52
• Avaya Meeting Exchange 5.1
• Avaya Meeting Exchange 5.1 SP1
• Avaya Meeting Exchange 5.2
• Avaya Meeting Exchange 5.2 SP1
• Avaya Meeting Exchange 5.2 SP2
• Avaya Messaging Application Server 4
• Avaya Messaging Application Server 5
• Avaya Messaging Application Server 5.2
• Microsoft Windows XP
• Microsoft Windows XP
• Microsoft Windows XP Embedded
• Microsoft Windows XP Embedded SP1
• Microsoft Windows XP Embedded SP2
• Microsoft Windows XP Embedded SP3
• Microsoft Windows XP Gold
• Microsoft Windows XP Gold Embedded
• Microsoft Windows XP Gold Home
• Microsoft Windows XP Gold Media Center
• Microsoft Windows XP Gold Professional
• Microsoft Windows XP Gold Tablet Pc
• Microsoft Windows XP Gold X64
• Microsoft Windows XP Home
• Microsoft Windows XP Home SP1
• Microsoft Windows XP Home SP2
• Microsoft Windows XP Home SP3
• Microsoft Windows XP Media Center Edition 2005 SP3
• Microsoft Windows XP Media Center Edition
• Microsoft Windows XP Media Center Edition SP1
• Microsoft Windows XP Media Center Edition SP2
• Microsoft Windows XP Media Center Edition SP3
• Microsoft Windows XP Professional
• Microsoft Windows XP Professional SP1
• Microsoft Windows XP Professional SP2
• Microsoft Windows XP Professional SP3
• Microsoft Windows XP Service Pack 3
• Microsoft Windows XP Sp1 X64
• Microsoft Windows XP Tablet PC Edition
• Microsoft Windows XP Tablet PC Edition SP1
• Microsoft Windows XP Tablet PC Edition SP2
• Microsoft Windows XP Tablet PC Edition SP3

Recommendations

Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.
To exploit this vulnerability, an attacker requires local access to an affected computer. Grant local access for trusted and accountable users only.

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