Description: This security update resolves a privately reported vulnerability in the Server service. The vulnerability could allow remote code execution if an affected system received a specially crafted RPC request. On Microsoft Windows 2000, Windows XP, and Windows Server 2003 systems, an attacker could exploit this vulnerability without authentication to run arbitrary code. It is possible that this vulnerability could be used in the crafting of a wormable exploit. Firewall best practices and standard default firewall configurations can help protect network resources from attacks that originate outside the enterprise perimeter. The security update addresses the vulnerability by correcting the way that the Server service handles RPC requests.

Update type: Important

Release date: October 23, 2008

Applies to: All

Knowledge base: support.microsoft.com/kb/958644

Download link: 32-bit | 64-bit

Comments: Here are the specifics on the vulnerabilities covered by this update:

• Server Service Vulnerability – CVE-2008-4250