USN-1370-1: libvorbis vulnerability

20 February 2012

libvorbis vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.10
  • Ubuntu 10.04 LTS


libvorbis could be made to crash or run programs as your login if it opened a specially crafted file.

Software Description

  • libvorbis - The Vorbis General Audio Compression Codec


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 cause a denial of service or possibly execute arbitrary code with the user’s privileges.

Update instructions

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

Ubuntu 11.10
libvorbis0a - 1.3.2-1ubuntu2.1
Ubuntu 11.04
libvorbis0a - 1.3.2-1ubuntu1.1
Ubuntu 10.10
libvorbis0a - 1.3.1-1ubuntu0.1
Ubuntu 10.04 LTS
libvorbis0a - 1.2.3-3ubuntu1.1

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.