Microsoft KB Archive/932624

= A computer that is running Live Communications Server crashes when it processes a specially crafted message from an authenticated user =

Article ID: 932624

Article Last Modified on 5/9/2007

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APPLIES TO

 Microsoft Office Live Communications Server 2005 Service Pack 1, when used with:  Microsoft Office Live Communications Server 2005 Enterprise Edition

 Microsoft Office Live Communications Server 2005 Standard Edition  Microsoft Office Live Communications Server 2003

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SYMPTOMS
A computer that is running Microsoft Office Live Communications crashes when it processes a specially crafted message from an authenticated user.



CAUSE
This problem occurs if a SUBSCRIBE request contains a Contact header that uses a wildcard character. In this situation, an access violation occurs when the server tries to read from memory location 0 (zero).

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Live Communications Server 2005 SP1
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Live Communications Server 2005 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Important This hotfix must be applied to servers that are configured in the following server roles:
 * Microsoft Office Live Communication Server 2005 Standard Edition (SE) servers
 * Microsoft Office Live Communication Server 2005 Enterprise Edition (EE) front-end servers
 * Servers that are configured as Directors

Prerequisites
You must be running Live Communications Server 2005 SP1 to apply this hotfix.

Restart requirement
You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace a previously released hotfix.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Live Communications Server 2003
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Live Communications Server 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
You must be running Live Communications Server 2003 to apply this hotfix.

Restart requirement
You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace a previously released hotfix.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

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MORE INFORMATION
For more information about the terminology that is used to describe Microsoft software updates, 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 query words: lcs SIP packet SE frontend front-end

Keywords: kbexpertiseinter kbbug kbfix kbhotfixserver kbqfe KB932624

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