Vulnerability: MS10-033 - Vulnerabilities in Media Decompression Could Allow Remote Code Execution (979902)

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	Details
Vulnerability name/brief description	MS10-033 - Vulnerabilities in Media Decompression Could Allow Remote Code Execution (979902)
CVE/CAN name	CVE-2010-1879 CVE-2010-1880
Vendor threat level	Critical
SophosLabs threat level	Medium
Solution	MS10-033
Vendor description	This security update resolves two privately reported vulnerabilities in Microsoft Windows. These vulnerabilities could allow remote code execution if a user opens a specially crafted media file or receives specially crafted streaming content from a Web site or any application that delivers Web content. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the local user. 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	Media files are common targets for exploitation due to their increased potential for circulation via social groups. There is a high possibility that malware authors will look to exploit these vulnerabilities and users are advised to install this update at their earliest convenience. The fact that these vulnerabilities have not been publicly disclosed, and that we are yet to see any malware that exploit these issues have been considered when assigning the SophosLabs threat rating of Medium.
SophosLabs testing result	N/A
Currently known exploits	At the time of writing SophosLabs have not observed any malware attempting to exploit this vulnerability. Should this situation change samples will be analyzed and we will take action as necessary.
First sample seen	N/A
Discovery date	8th June 2010
Affected software	Windows 2000 Service Pack 4 Windows XP Service Pack 2 and 3 Windows XP Professional x64 Edition Service Pack 2 Windows Server 2003 Service Pack 2 Windows Server 2003 x64 Edition Service Pack 2 Windows Server 2003 Itanium based Systems No Service Pack and Service Pack 2 Windows Vista Service Pack 1 and 2 Windows Vista x64 Edition Service Pack 1 and 2 Windows Server 2008 No Service Pack and Service Pack 2 Windows Server 2008 x64 Edition No Service Pack and Service Pack 2 Windows Server 2008 for Itanium Based Systems No Service Pack and Service Pack 2
References	http://www.microsoft.com/technet/security/bulletin/MS10-033.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1879 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1880
Credits	Microsoft MAPP
Revisions	8th June 2010 - 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:
Threat level assigned by the vendor

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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Vendor Description:
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SophosLabs Comments:
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SophosLabs Testing Result:
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Currently Known Exploits:
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First Sample Seen:
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Discovery Date:
Date of the earliest known publically disclosed advisory.

Affected Software:
Vulnerable platforms and software versions.