GLSA 201101-03: libvpx: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	libvpx: User-assisted execution of arbitrary code
Date:	01/15/2011
Bugs:	#345559
ID:	201101-03

Synopsis

Timothy B. Terriberry discovered that libvpx contains an integer overflow vulnerability in the processing of video streams that may allow user-assisted execution of arbitrary code.

Background

libvpx is the VP8 codec SDK used to encode and decode video streams, typically within a WebM format media file.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-libs/libvpx	< 0.9.5	>= 0.9.5	All supported architectures

Description

libvpx is vulnerable to an integer overflow vulnerability when processing crafted VP8 video streams.

Impact

A remote attacker could entice a user to open a specially crafted media file, possibly resulting in the execution of arbitrary code with the privileges of the user running the application, or a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All libvpx users should upgrade to the latest stable version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/libvpx-0.9.5"

Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.

References

CVE-2010-4203

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201101-03.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.