Ubuntu Security Notice USN-1209-1
19th September, 2011
ffmpeg vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.10
- Ubuntu 10.04 LTS
Summary
FFmpeg could be made to run programs as your login if it opened a specially crafted file.
Software description
- ffmpeg - multimedia player, server and encoder
Details
It was discovered that FFmpeg incorrectly handled certain malformed ogg
files. If a user were tricked into opening a crafted ogg 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. This
issue only affected Ubuntu 10.10. (CVE-2011-1196)
It was discovered that FFmpeg incorrectly handled certain malformed AMV
files. If a user were tricked into opening a crafted AMV 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. This
issue only affected Ubuntu 10.10. (CVE-2011-1931)
It was discovered that FFmpeg incorrectly handled certain malformed APE
files. If a user were tricked into opening a crafted APE file, an attacker
could cause a denial of service via application crash. (CVE-2011-2161)
Emmanouel Kellinis discovered that FFmpeg incorrectly handled certain
malformed CAVS files. If a user were tricked into opening a crafted CAVS
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. (CVE-2011-3362)
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 10.10:
- libavformat52 4:0.6-2ubuntu6.2
- libavcodec52 4:0.6-2ubuntu6.2
- Ubuntu 10.04 LTS:
- libavformat52 4:0.5.1-1ubuntu1.2
- libavcodec52 4:0.5.1-1ubuntu1.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.