Adobe Flash Player is an application for viewing animations and movies using computer programs such as a Web browser; in common use, Flash lets users put animation and movies on a website. Flash Player runs SWF files that can be created by the Adobe Flash authoring tool, by Adobe Flex or by a number of other third-party tools. For more information, please visit the following website: http://www.adobe.com/products/flashplayer/.
Remote exploitation of a heap buffer overflow vulnerability in Adobe Systems Inc.'s Flash Player could allow an attacker to execute arbitrary code with the privileges of the current user.
The vulnerability occurs when parsing a specially crafted Flash video (.f4v) file with encryption when it processes samples. Each sample has a size parameter. An integer overflow occurs when calculating the data length to copy based on the size parameter, which further causes a heap overflow. This can lead to the execution of arbitrary code.
The following versions of Flash are vulnerable:
Disable or uninstall Flash Player, or only allow it to run from trusted websites. This can be performed by changing the permissions on the Flash plug-in binary, or by modifying browser plug-in configuration options.
Adobe Systems Inc. has released patches which address this issue. For more information, consult their advisory at the following URL:
The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2012-4167 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems.
07/11/2012 Initial Vendor Notification
07/11/2012 Initial Vendor Reply
08/21/2012 Coordinated Public Disclosure
This vulnerability was reported to iDefense by Alexander Gavrun.
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Copyright © 2012 Verisign, Inc.
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