Microsoft Windows OpenType Compact Font Format Driver Privilege Escalation Vulnerability (2296199)

Summary
This host is missing an important security update according to Microsoft Bulletin MS10-091.
Impact
Successful exploitation could allow an attacker to run arbitrary code in kernel mode. 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/MS10-091.mspx
Insight
The flaw is due to OpenType Font (OTF) driver which does not properly, - index an array when parsing OpenType fonts - parse the CMAP table when rendering a specially crafted OpenType font - reset a pointer when freeing memory, which results in a 'double free' condition.
Affected
Micorsoft Windows 7 Microsoft Windows XP Service Pack 3 and prior. Microsoft Windows 2003 Service Pack 2 and prior. Microsoft Windows Vista Service Pack 1/2 and prior. Microsoft Windows Server 2008 Service Pack 1/2 and prior.
References