Check Point Advisories

Microsoft MPEG Layer-3 Audio Decoder Stack Overflow (MS10-026; CVE-2010-0480)

Vulnerability
Protection

Check Point Reference:	CPAI-2010-060
Date Published:	13 Apr 2010
Severity:	Critical
Last Updated:	Sunday 29 December, 2013
Source:
Industry Reference:	CVE-2010-0480
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description	MPEG Layer-3 audio codecs are the MPEG Layer-3 Audio Codec for Microsoft DirectShow (l3codecx.ax) and the Fraunhofer IIS MPEG Layer-3 ACM codecs (L3codeca.acm and L3codecp.acm). These MPEG Layer-3 audio codecs are provided along with Windows Media files on affected versions of Microsoft Windows. A stack overflow vulnerability has been reported in the way that Microsoft MPEG Layer-3 codecs handle AVI media files. The vulnerability is due to an error in Microsoft MPEG Layer-3 audio codecs that fail to properly handle specially crafted AVI files containing an MPEG Layer-3 audio stream. A remote attacker could trigger this flaw by convincing the victim to open a specially crafted AVI file. Successful exploitation of this issue may allow execution of arbitrary code once the malformed file is opened on a vulnerable system.

Protection Overview

This protection detects and blocks the transferring of malformed AVI files over HTTP.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75 / R71 / R70 / R65

In the IPS tab, click Protections and find the Microsoft MPEG Layer-3 Audio Decoder Stack Overflow (MS10-026) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Content Protection Violation.
Attack Information: Microsoft MPEG layer-3 audio decoder stack overflow (MS10-026)