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========================================================================== Ubuntu Security Notice USN-1630-1 November 12, 2012
libav vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10 - Ubuntu 12.04 LTS
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 12.10: libavcodec53 6:0.8.4-0ubuntu0.12.10.1 libavformat53 6:0.8.4-0ubuntu0.12.10.1
Ubuntu 12.04 LTS: libavcodec53 4:0.8.4-0ubuntu0.12.04.1 libavformat53 4:0.8.4-0ubuntu0.12.04.1
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: http://www.ubuntu.com/usn/usn-1630-1 CVE-2012-2772, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777, CVE-2012-2779, CVE-2012-2784, CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790, CVE-2012-2793, CVE-2012-2794, CVE-2012-2796, CVE-2012-2798, CVE-2012-2800, CVE-2012-2801, CVE-2012-2802
Package Information: https://launchpad.net/ubuntu/+source/libav/6:0.8.4-0ubuntu0.12.10.1 https://launchpad.net/ubuntu/+source/libav/4:0.8.4-0ubuntu0.12.04.1
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