1. Ubuntu Security Notices
  2. USN-825-1

USN-825-1: libvorbis vulnerability

Publication date

24 August 2009

Overview

libvorbis vulnerability

Releases

Packages

Details

It was discovered that libvorbis did not correctly handle certain malformed
ogg files. If a user were tricked into opening a specially crafted ogg file
with an application that uses libvorbis, an attacker could execute
arbitrary code with the user’s privileges. (CVE-2009-2663)

USN-682-1 provided updated libvorbis packages to fix multiple security
vulnerabilities. The upstream security patch to fix CVE-2008-1420
introduced a regression when reading sound files encoded with libvorbis
1.0beta1. This update corrects the problem.

Original advisory details:

It was discovered that libvorbis did not correctly handle certain
malformed sound files. If a user were tricked into opening a specially
crafted sound file with an application that uses libvorbis, an attacker
could execute arbitrary code with the user’s privileges. (

It was discovered that libvorbis did not correctly handle certain malformed
ogg files. If a user were tricked into opening a specially crafted ogg file
with an application that uses libvorbis, an attacker could execute
arbitrary code with the user’s privileges. (CVE-2009-2663)

USN-682-1 provided updated libvorbis packages to fix multiple security
vulnerabilities. The upstream security patch to fix CVE-2008-1420
introduced a regression when reading sound files encoded with libvorbis
1.0beta1. This update corrects the problem.

Original advisory details:

It was discovered that libvorbis did not correctly handle certain
malformed sound files. If a user were tricked into opening a specially
crafted sound file with an application that uses libvorbis, an attacker
could execute arbitrary code with the user’s privileges. (CVE-2008-1420)

Update instructions

After a standard system upgrade you need to restart any applications that use libvorbis, such as Totem and gtkpod, to effect the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
9.04 jaunty libvorbis0a –  1.2.0.dfsg-3.1ubuntu0.9.04.1
8.10 intrepid libvorbis0a –  1.2.0.dfsg-3.1ubuntu0.8.10.1
8.04 hardy libvorbis0a –  1.2.0.dfsg-2ubuntu0.2

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References

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