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Ubuntu Security Notice USN-2349-1
September 17, 2014

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

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

– 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 12.04 LTS:
libavcodec53 4:0.8.16-0ubuntu0.12.04.1
libavformat53 4:0.8.16-0ubuntu0.12.04.1

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-2349-1
https://launchpad.net/bugs/1370175

Package Information:
https://launchpad.net/ubuntu/+source/libav/4:0.8.16-0ubuntu0.12.04.1

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