===================================================================== CERT-Renater Note d'Information No. 2009/VULN158 _____________________________________________________________________ DATE : 15/04/2009 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Microsoft Windows 2000, Windows XP, Windows Server 2003, running DirectX versions 8.1, 9.0*. ====================================================================== KB961373 http://www.microsoft.com/technet/security/Bulletin/ms09-011.mspx ______________________________________________________________________ Microsoft Security Bulletin MS09-011 - Critical Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution (961373) Published: April 14, 2009 Version: 1.0 General Information Executive Summary This security update resolves a privately reported vulnerability in Microsoft DirectX. The vulnerability could allow remote code execution if user opened a specially crafted MJPEG file. 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. This security update is rated Critical for all supported editions of Microsoft Windows 2000, Windows XP, and Windows Server 2003. For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses the vulnerability by correcting the way that DirectShow decompresses media files. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information. Affected Software Microsoft Windows 2000 Service Pack with DirectX 8.1 Microsoft Windows 2000 Service Pack 4 with DirectX 9.0* Windows XP Service Pack 2 and Windows XP Service Pack 3 with DirectX 9.0* Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 with DirectX 9.0* Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 with DirectX 9.0* Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2 with DirectX 9.0* Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems with DirectX 9.0* *The update for DirectX 9.0 also applies to DirectX 9.0a, DirectX 9.0b, and DirectX 9.0c. Vulnerability Information MJPEG Decompression Vulnerability - CVE-2009-0084 A remote code execution vulnerability exists in the way Microsoft DirectShow handles supported format files. This vulnerability could allow code execution if a user opened a specially crafted MJPEG 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. ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================