CVE-2011-0654

Name of the Vulnerable Software and Affected Versions Microsoft Windows XP versions SP2 through SP3 Microsoft Windows Server 2003 version SP2 Microsoft Windows Vista versions SP1 through SP2 Microsoft Windows Server 2008 versions Gold through R2 SP1 Microsoft Windows 7 versions Gold through SP1

Description The issue is related to an integer underflow in the BowserWriteErrorLogEntry function in the Common Internet File System (CIFS) browser service, which can lead to a heap-based buffer overflow. This allows remote attackers to execute arbitrary code or cause a denial of service via a malformed BROWSER ELECTION message. An unauthenticated remote code execution vulnerability exists in the way that the CIFS Browser Protocol implementation parses malformed browser messages, enabling an attacker to execute arbitrary code and take complete control of an affected system.

Recommendations For Microsoft Windows XP versions SP2 through SP3, update to a newer version to mitigate the risk. For Microsoft Windows Server 2003 version SP2, update to a newer version to mitigate the risk. For Microsoft Windows Vista versions SP1 through SP2, update to a newer version to mitigate the risk. For Microsoft Windows Server 2008 versions Gold through R2 SP1, update to a newer version to mitigate the risk. For Microsoft Windows 7 versions Gold through SP1, update to a newer version to mitigate the risk. As a temporary workaround, consider restricting access to the CIFS Browser Protocol to minimize the risk of exploitation.