Article ID: 2588516 - Last Review: March 1, 2012 - Revision: 3.0

MS11-083: Vulnerability in TCP/IP could allow remote code execution: November 8, 2011

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Introduction

Microsoft has released security bulletin MS11-083. To view the complete security bulletin, visit one of the following Microsoft websites:

Home users:
http://www.microsoft.com/security/pc-security/bulletins/201111.aspx (http://www.microsoft.com/security/pc-security/bulletins/201111.aspx)
Skip the details: Download the updates for your home computer or laptop from the Microsoft Update website now:
http://update.microsoft.com/microsoftupdate (http://update.microsoft.com/microsoftupdate)
IT professionals:
http://technet.microsoft.com/security/bulletin/MS11-083 (http://technet.microsoft.com/security/bulletin/MS11-083)

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How to obtain help and support for this security update

For home users, no-charge support is available by calling 1-866-PCSAFETY in the United States and Canada or by contacting your local Microsoft subsidiary. For more information about how to contact your local Microsoft subsidiary for support issues with security updates, visit the Microsoft International Support website:

http://support.microsoft.com/common/international.aspx?rdpath=4 (http://support.microsoft.com/common/international.aspx?rdpath=4)

North American customers can also obtain instant access to unlimited no-charge email support or to unlimited individual chat support by visiting the following Microsoft website:

http://support.microsoft.com/oas/default.aspx?&prid=7552 (http://support.microsoft.com/oas/default.aspx?&prid=7552)

For enterprise customers, support for security updates is available through your usual support contacts.

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MORE INFORMATION

About this security update

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Restart information

You must restart the computer after you install this security update.

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Removal information

To uninstall an update that was installed by using WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.

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Security update replacement information

This security update replaces the following security update:

2563894 (http://support.microsoft.com/kb/2563894/ ) MS11-064: Vulnerabilities in TCP/IP Stack Could Allow Denial of Service: August 9, 2011

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File information

The English (United States) version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Vista and Windows Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table: