Microsoft Windows Kernel 'Win32k.sys' CVE-2012-2553 Local Privilege Escalation Vulnerability

Description

Microsoft Windows is prone to a local privilege-escalation vulnerability that occurs in the Windows kernel due to a use-after-free error. A local attacker can exploit this issue to execute arbitrary code with kernel-level privileges. Successful exploits will result in the complete compromise of affected computers. Failed exploit attempts may cause a denial-of-service condition.

Technologies Affected

• Avaya Aura Conferencing 6.0 SP1 Standard
• Avaya CallPilot 4.0.1
• Avaya CallPilot 5.0.1
• Avaya Communication Server 1000 Telephony Manager 3.0.1
• Avaya Communication Server 1000 Telephony Manager 4.0.1
• Avaya Meeting Exchange - Client Registration Server 5.0
• Avaya Meeting Exchange - Client Registration Server 5.0.1
• Avaya Meeting Exchange - Client Registration Server 5.2
• Avaya Meeting Exchange - Client Registration Server 5.2.1
• Avaya Meeting Exchange - Recording Server 5.0
• Avaya Meeting Exchange - Recording Server 5.0.1
• Avaya Meeting Exchange - Recording Server 5.2
• Avaya Meeting Exchange - Recording Server 5.2.1
• Avaya Meeting Exchange - Streaming Server 5.0
• Avaya Meeting Exchange - Streaming Server 5.0.1
• Avaya Meeting Exchange - Streaming Server 5.2
• Avaya Meeting Exchange - Streaming Server 5.2.1
• Avaya Meeting Exchange - Web Conferencing Server 5.0
• Avaya Meeting Exchange - Web Conferencing Server 5.0.1
• Avaya Meeting Exchange - Web Conferencing Server 5.2
• Avaya Meeting Exchange - Web Conferencing Server 5.2.1
• Avaya Meeting Exchange - Webportal 5.0
• Avaya Meeting Exchange - Webportal 5.0.1
• Avaya Meeting Exchange - Webportal 5.2
• Avaya Meeting Exchange - Webportal 5.2.1
• Avaya Messaging Application Server 5.0
• Avaya Messaging Application Server 5.0.1
• Avaya Messaging Application Server 5.2
• Avaya Messaging Application Server 5.2.1
• Microsoft Windows 7 for 32-bit Systems
• Microsoft Windows 7 for 32-bit Systems SP1
• Microsoft Windows Server 2003 SP1
• Microsoft Windows Server 2003 SP2
• Microsoft Windows Server 2008 for 32-bit Systems
• Microsoft Windows Server 2008 for 32-bit Systems SP2
• Microsoft Windows Vista Service Pack 2
• Microsoft Windows XP Service Pack 3

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.