Ubuntu Security Notice USN-2534-1
17th March, 2015
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 version:
- Ubuntu 12.04 LTS:
-
libavformat53
4:0.8.17-0ubuntu0.12.04.1
-
libavcodec53
4:0.8.17-0ubuntu0.12.04.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.