A vulnerability in the Microsoft Windows TrueType font parsing component could allow an attacker to run arbitrary code in kernel mode. This vulnerability is reportedly being exploited by malicious software in the wild known as Duqu.
The Microsoft Windows kernel includes a driver (win32k.sys) that handles a variety of graphics processing tasks, including the processing of TrueType fonts. A vulnerability exists in the way this driver handles certain embedded TrueType fonts. This vulnerability could allow an attacker to execute code with elevated privileges on the affected system.
A remote attacker could exploit this vulnerability by embedding a specially crafted font in a document attached to an email message or including the crafted font in a web page.
An attacker may be able to run arbitrary code in kernel mode, resulting in complete system compromise. Secondary impacts include, but are not limited to, installation of programs; viewing, changing, or deleting data; or the creation of new system accounts with full privileges.
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This document was written by Chad R Dougherty.
|Date First Published:||2011-11-04|
|Date Last Updated:||2011-12-19 12:57 UTC|