Ubuntu: 1674-1: Libav vulnerabilities
Posted by Benjamin D. Thomas   
Ubuntu Libav could be made to crash or run programs as your login if it opened aspecially crafted file.
Ubuntu Security Notice USN-1674-1
December 19, 2012

libav vulnerabilities

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

- Ubuntu 11.10


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

Software Description:
- libav: Multimedia player, server, encoder and transcoder


It was discovered that Libav incorrectly handled certain malformed media
files. If a user were tricked into opening a crafted media file, an
attacker could cause a denial of service via application crash, or possibly
execute arbitrary code with the privileges of the user invoking the

Update instructions:

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

Ubuntu 11.10:
  libavcodec53                    4:0.7.6-0ubuntu0.11.10.2
  libavformat53                   4:0.7.6-0ubuntu0.11.10.2

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

  CVE-2012-2772, CVE-2012-2775, CVE-2012-2777, CVE-2012-2779,
  CVE-2012-2784, CVE-2012-2786, CVE-2012-2788, CVE-2012-2789,
  CVE-2012-2790, CVE-2012-2793, CVE-2012-2794, CVE-2012-2798,
  CVE-2012-2800, CVE-2012-2801

Package Information: