Microsoft Excel Remote Code Execution Vulnerability (956416)

Summary
This host is missing critical security update according to Microsoft Bulletin MS08-057.
Impact
Remote attackers could corrupt memory via a specially crafted Excel (.xls) files. Impact Level: System
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/ms08-057.mspx
Insight
The flaws are due to - insufficient validation of data in a VBA Performance Cache. - an error in the loading of Excel objects, which in corrupt memory via a specially crafted file. - an integer overflow in the REPT function when handling formulas inside cells.
Affected
Microsoft Execel 2002/XP/2003/2007 on Windows (All). Microsoft Execel Viewer 2003/2007 on Windows (All).
References