==========================================================================
Ubuntu Security Notice USN-2103-1
February 11, 2014

libav vulnerabilities
==========================================================================

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

– Ubuntu 13.10
– Ubuntu 12.10
– Ubuntu 12.04 LTS

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.

Update instructions:

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

Ubuntu 13.10:
libavcodec53 6:0.8.10-0ubuntu0.13.10.1
libavformat53 6:0.8.10-0ubuntu0.13.10.1

Ubuntu 12.10:
libavcodec53 6:0.8.10-0ubuntu0.12.10.1
libavformat53 6:0.8.10-0ubuntu0.12.10.1

Ubuntu 12.04 LTS:
libavcodec53 4:0.8.10-0ubuntu0.12.04.1
libavformat53 4:0.8.10-0ubuntu0.12.04.1

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:
http://www.ubuntu.com/usn/usn-2103-1
https://launchpad.net/bugs/1277173

Package Information:
https://launchpad.net/ubuntu/+source/libav/6:0.8.10-0ubuntu0.13.10.1
https://launchpad.net/ubuntu/+source/libav/6:0.8.10-0ubuntu0.12.10.1
https://launchpad.net/ubuntu/+source/libav/4:0.8.10-0ubuntu0.12.04.1

—–BEGIN PGP SIGNATURE—–
Version: GnuPG v1
Comment: Using GnuPG with Thunderbird – http://www.enigmail.net/
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=y28U
—–END PGP SIGNATURE—–
—