Data is corrupted when there is insufficient memory on a Windows-based computer

Symptoms

Assume that you run some Winsock applications on a Windows Server 2008, Windows Server 2008 R2, or Windows Server 2012-based computer. When the computer has insufficient memory resources, the same data is received by the Winsock applications two times. This leads to data corruption.

Cause

This issue occurs because the system does not update the TCP receive window with the partly buffered data. When the computer has insufficient memory resources, the system successfully buffers only part of the data and then discards the rest. Therefore, data corruption occurs.

Resolution

Cumulative Update information

To resolve this issue in Windows Server 2012, install the cumulative update 2811660. For more information about how to obtain this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2811660 Windows 8 and Windows Server 2012 cumulative update: March 2013

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows Server 2008 Service Pack 2 (SP2)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849 How to obtain the latest service pack for Windows Server 2008
For more information about how to obtain a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix, you do not have to change the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.
File information

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows Server 2008 and for Windows Server 2008 R2

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Additional files for all supported x64-based versions of Windows Server 2008 R2
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Additional files for all supported IA-64-based versions of Windows Server 2008
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Additional files for all supported IA-64-based versions of Windows Server 2008 R2
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Properties

Article ID: 2785146 - Last Review: Mar 13, 2013 - Revision: 1

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