USN-825-1: libvorbis vulnerability

Releases

• Ubuntu 9.04
• Ubuntu 8.10
• Ubuntu 8.04

Packages

• libvorbis -

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. (CVE-2008-1420)

Update instructions

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

Ubuntu 9.04

• libvorbis0a - 1.2.0.dfsg-3.1ubuntu0.9.04.1

Ubuntu 8.10

• libvorbis0a - 1.2.0.dfsg-3.1ubuntu0.8.10.1

Ubuntu 8.04

• libvorbis0a - 1.2.0.dfsg-2ubuntu0.2

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

References

• CVE-2008-1420
• CVE-2009-2663

Related notices

• USN-682-1: libvorbis, libvorbis0a