libvorbis: User-assisted execution of arbitrary code — GLSA 200909-02

A processing error in libvorbis might result in the execution of arbitrary code or a Denial of Service.

Affected packages

Package	media-libs/libvorbis on all architectures
Affected versions	< 1.2.3
Unaffected versions	>= 1.2.3

Background

libvorbis is the reference implementation of the Xiph.org Ogg Vorbis audio file format. It is used by many applications for playback of Ogg Vorbis files.

Description

Lucas Adamski reported that libvorbis does not correctly process file headers, related to static mode headers and encoding books.

Impact

A remote attacker could entice a user to play a specially crafted OGG Vorbis file using an application that uses libvorbis, 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 libvorbis users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-libs/libvorbis-1.2.3"

References

CVE-2009-2663

Release date
September 07, 2009

Latest revision
September 07, 2009: 01

Severity
normal

Exploitable
remote

Bugzilla entries

280590