MS10-026 - Critical: Vulnerability in Microsoft MPEG Layer-3 Codecs Could Allow Remote Code Execution (977816) - Version:1.1

[Steve]

Severity Rating: Critical - Revision Note: V1.1 (June 22, 2010): Revised this bulletin to announce a detection logic change to fix a reoffer issue with MPEG Layer-3 codecs on Microsoft Windows 2000 Service Pack 4. This is a detection change only that does not affect the files contained in the initial update. Customers who have successfully updated their systems do not need to reinstall this update.Summary: This security update resolves a privately reported vulnerability in Microsoft MPEG Layer-3 audio codecs. The vulnerability could allow remote code execution if a user opened a specially crafted AVI file containing an MPEG Layer-3 audio stream. 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.

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