Vulnerability: MS09-011. Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution

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	Details
Vulnerability name/brief description	Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution - MS09-011
CVE/CAN name	CVE-2009-0084
Vendor threat level	Critical
SophosLabs threat level	Medium
Solution	Users are advised to apply the vendor patch for MS09-011 .
Vendor description	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.
SophosLabs comments	Although this vulnerability has the potential for remote code execution we believe that it is unlikely that such an attack would be widespread. The attacker has to create a specially crafted MJPEG file and entice the user to open the file.
SophosLabs testing result	N/A
Currently known exploits	At the time of writing SophosLabs has seen no samples of malware attempting to exploit this vulnerability. Should this situation change samples will be analysed and we will take action as necessary.
First sample seen	N/A
Discovery date	14 April 2009
Affected software	Microsoft Windows 2000 Microsoft Windows XP Microsoft Windows 2003 DirectX 8.1 DirectX 9.0
References	http://www.microsoft.com/technet/security/Bulletin/ms09-011.mspx http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0084
Credits	Microsoft MAPP program
Revisions	14 April 2009 - initial analysis written

Explanation of terms

Vulnerability Name/Brief Description:
Vendor identifier plus a brief description of the type of attack.

CVE/CAN Name:
Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.

Vendor Threat Level:
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SophosLabs Threat Level:
Threat level assigned by SophosLabs

• LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
• MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
• HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
• CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.

Solution:
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Currently Known Exploits:
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First Sample Seen:
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Discovery Date:
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Affected Software:
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