USN-2025-1: Libav vulnerabilities

Releases

• Ubuntu 13.10
• Ubuntu 13.04
• Ubuntu 12.10
• Ubuntu 12.04

Packages

• 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.

Update instructions

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

Ubuntu 13.10

• libavformat53 - 6:0.8.9-0ubuntu0.13.10.1
• libavcodec53 - 6:0.8.9-0ubuntu0.13.10.1

Ubuntu 13.04

• libavformat53 - 6:0.8.9-0ubuntu0.13.04.1
• libavcodec53 - 6:0.8.9-0ubuntu0.13.04.1

Ubuntu 12.10

• libavformat53 - 6:0.8.9-0ubuntu0.12.10.1
• libavcodec53 - 6:0.8.9-0ubuntu0.12.10.1

Ubuntu 12.04

• libavformat53 - 4:0.8.9-0ubuntu0.12.04.1
• libavcodec53 - 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.

References

• https://launchpad.net/bugs/1249621