USN-1104-1: FFmpeg vulnerabilities

Ubuntu Security Notice USN-1104-1

4th April, 2011

ffmpeg vulnerabilities

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

  • Ubuntu 10.10
  • Ubuntu 10.04 LTS
  • Ubuntu 9.10
  • Ubuntu 8.04 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

Cesar Bernardini and Felipe Andres Manzano discovered that FFmpeg
incorrectly handled certain malformed flic files. If a user were tricked
into opening a crafted flic 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 8.04 LTS, 9.10 and 10.04 LTS. (CVE-2010-3429)

Dan Rosenberg discovered that FFmpeg incorrectly handled certain malformed
wmv files. If a user were tricked into opening a crafted wmv 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 8.04 LTS, 9.10 and 10.04 LTS.
(CVE-2010-3908)

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.
(CVE-2010-4704)

It was discovered that FFmpeg incorrectly handled certain malformed WebM
files. If a user were tricked into opening a crafted WebM 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-2011-0480)

Dan Rosenberg discovered that FFmpeg incorrectly handled certain malformed
RealMedia files. If a user were tricked into opening a crafted RealMedia
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 8.04 LTS, 9.10 and 10.04 LTS.
(CVE-2011-0722)

Dan Rosenberg discovered that FFmpeg incorrectly handled certain malformed
VC1 files. If a user were tricked into opening a crafted VC1 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-2011-0723)

Update instructions

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

Ubuntu 10.10:
libavformat52 4:0.6-2ubuntu6.1
libavcodec52 4:0.6-2ubuntu6.1
Ubuntu 10.04 LTS:
libavformat52 4:0.5.1-1ubuntu1.1
libavcodec52 4:0.5.1-1ubuntu1.1
Ubuntu 9.10:
libavformat52 4:0.5+svn20090706-2ubuntu2.3
libavcodec52 4:0.5+svn20090706-2ubuntu2.3
Ubuntu 8.04 LTS:
libavformat1d 3:0.cvs20070307-5ubuntu7.6
libavcodec1d 3:0.cvs20070307-5ubuntu7.6

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.

References

CVE-2010-3429, CVE-2010-3908, CVE-2010-4704, CVE-2011-0480, CVE-2011-0722, CVE-2011-0723