Ubuntu 13.10: USN-2025-1 Critical: Libav Denial of Service

ubuntu

November 11, 2013

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

Summary

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

Details:

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

program.

Topics Covered

security advisory denial of service critical application crash ubuntu libav

Update Instructions

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

Ubuntu 13.10:
  libavcodec53                    6:0.8.9-0ubuntu0.13.10.1
  libavformat53                   6:0.8.9-0ubuntu0.13.10.1

Ubuntu 13.04:
  libavcodec53                    6:0.8.9-0ubuntu0.13.04.1
  libavformat53                   6:0.8.9-0ubuntu0.13.04.1

Ubuntu 12.10:
  libavcodec53                    6:0.8.9-0ubuntu0.12.10.1
  libavformat53                   6:0.8.9-0ubuntu0.12.10.1

Ubuntu 12.04 LTS:
  libavcodec53                    4:0.8.9-0ubuntu0.12.04.1
  libavformat53                   4:0.8.9-0ubuntu0.12.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.