Microsoft Windows Media File Processing Vulnerabilities( 12 August 2009 )

1. Malformed AVI Header Vulnerability

A remote code execution vulnerability exists in the way Microsoft Windows handles specially crafted AVI format files. This vulnerability could allow code execution if a user opened a specially crafted AVI file. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.

2. AVI Integer Overflow Vulnerability

A remote code execution vulnerability exists in the way Microsoft Windows handles specially crafted AVI format files. This vulnerability could allow code execution if a user opened a specially crafted AVI file. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user right