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Ubuntu 12.04 LTS: 2349-1 Moderate: Libav Code Execution Risk

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Calendar Grey September 17, 2014
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Warnings regarding vulnerabilities in Libav for Ubuntu 12.04 could lead to system instability or unauthorized code execution; detailed update guidance enclosed.
Libav could be made to crash or run programs as your login if it opened a specially crafted file.

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.

Topics%20covered

Topics Covered

security advisory code execution Ubuntu doS libav

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

https://ubuntu.com/security/notices/USN-2349-1

https://bugs.launchpad.net/ubuntu/+source/libav/+bug/1370175

Severity
important
Lowest
Low
Medium
High
Critical

September 17, 2014

Topics%20covered

Topics Covered

security advisory code execution Ubuntu doS libav

Package Information

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

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