1. Ubuntu Security Notices
  2. USN-1209-2

USN-1209-2: Libav vulnerabilities

Publication date

19 September 2011

Overview

Libav could be made to run programs as your login if it opened a specially crafted file.

Releases

Packages

  • libav - Multimedia player, server, encoder and transcoder

Details

It was discovered that Libav 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-2011-1196)

It was discovered that Libav 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.
(CVE-2011-1931)

Emmanouel Kellinis discovered that Libav 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...

It was discovered that Libav 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-2011-1196)

It was discovered that Libav 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.
(CVE-2011-1931)

Emmanouel Kellinis discovered that Libav 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

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
11.04 natty libavformat52 –  4:0.6.2-1ubuntu1.1
libavcodec52 –  4:0.6.2-1ubuntu1.1

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References

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