KB967723

UpdatesDescription: This security update resolves several privately reported vulnerabilities in Transmission Control Protocol/Internet Protocol (TCP/IP) processing. The vulnerabilities could allow remote code execution if an attacker sent specially crafted TCP/IP packets over the network to a computer with a listening service. Firewall best practices and standard default firewall configurations can help protect networks from attacks that originate outside the enterprise perimeter. Best practices recommend that systems that are connected to the Internet have a minimal number of ports exposed. The security update addresses the vulnerabilities by dropping existing TCP connections adaptively and limiting the number of new TCP connections until system resources are restored, and changing the manner in which TCP/IP packets are processed.

Update type: Critical

Release date: September 8, 2009

Applies to: All versions

Knowledge base: http://support.microsoft.com/kb/967723

Download link: 32-bit | 64-bit
Comments:Here are the specifics on the vulnerabilities covered by this update:

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