Microsoft Windows Active Directory SPN Denial of Service (2478953)

Summary
This host is missing a critical security update according to Microsoft Bulletin MS11-005.
Impact
Successful exploitation will allows attackers to cause a denial of service. Impact Level: System/Application
Solution
Run Windows Update and update the listed hotfixes or download and update mentioned hotfixes in the advisory from the below link, http://www.microsoft.com/technet/security/Bulletin/MS11-005.mspx
Insight
The flaw is due to an error in Active Directory that does not properly process specially crafted requests to update the service principal name (SPN).
Affected
Windows Server 2003 Service Pack 2 and prior.
References