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Category:   Application (Security)  >   Microsoft Forefront Threat Management Gateway Vendors:   Microsoft
Microsoft Forefront Threat Management Gateway Bounds Validation Flaw in Winsock Provider Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1025637
SecurityTracker URL:  http://securitytracker.com/id/1025637
CVE Reference:   CVE-2011-1889   (Links to External Site)
Date:  Jun 14 2011
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2010 Client
Description:   A vulnerability was reported in Microsoft Forefront Threat Management Gateway Client. A remote user can cause arbitrary code to be executed on the target user's system.

The client does not properly validate user-supplied data to the NSPLookupServiceNext() function. A remote user that can cause the target user to generate specific requests can trigger a memory corruption error and execute arbitrary code on the target user's system. The code will run with the privileges of the target user.

Impact:   A remote user can cause arbitrary code to be executed on the target user's system.
Solution:   The vendor has issued the following fix:

Microsoft Forefront Threat Management Gateway 2010 Client:

http://www.microsoft.com/downloads/details.aspx?familyid=d1c85acd-a6df-4634-9cd4-c562ad92097e

A restart is required.

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms11-040.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms11-040.mspx (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   None.


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