Fortinet Discovers Microsoft Office Web Components Remote Memory Corruption Vulnerability
Fortinet's FortiGuard Labs has discovered remote memory corruption vulnerability in Microsoft Office Web Components.
SolutionsFortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:
Released Jan 14, 2009
Users should apply the solution provided by Microsoft.
A remote attacker could craft a malicious HTML document which exploits the Internet Explorer. The vulnerability lies in the default ActiveX Control installed by the Microsoft Office. A crafted object may be created and passed to a method of this control that will cause memory corruption in the Internet Explorer. After the corruption has occurred, a few specific actions will cause Internet Explorer to cause remote code execution through a call instruction.
Haifei Li of Fortinet's FortiGuard Global Security Research Team.