Description: This security update resolves four privately reported vulnerabilities. The vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The security update addresses these vulnerabilities by modifying the way that Internet Explorer validates parameters, handles the error resulting in the exploitable condition, and handles extra data when embedding objects in Web pages.
Update type: Critical
Release date: December 9, 2008
Applies to: All
Knowledge base: http://support.microsoft.com/kb/958215
Comments: Here are the specifics on the vulnerabilities covered by this update: