Ubuntu Security Notice 1674-1 - 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.
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Ubuntu Security Notice USN-1674-1
December 19, 2012
libav vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
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 versions:
Ubuntu 11.10:
libavcodec53 4:0.7.6-0ubuntu0.11.10.2
libavformat53 4:0.7.6-0ubuntu0.11.10.2
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1674-1
CVE-2012-2772, CVE-2012-2775, CVE-2012-2777, CVE-2012-2779,
CVE-2012-2784, CVE-2012-2786, CVE-2012-2788, CVE-2012-2789,
CVE-2012-2790, CVE-2012-2793, CVE-2012-2794, CVE-2012-2798,
CVE-2012-2800, CVE-2012-2801
Package Information:
https://launchpad.net/ubuntu/+source/libav/4:0.7.6-0ubuntu0.11.10.2