========================================================================== Ubuntu Security Notice USN-1705-1 January 28, 2013 libav vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.10 - Ubuntu 12.04 LTS - 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 12.10: libavcodec53 6:0.8.5-0ubuntu0.12.10.1 libavformat53 6:0.8.5-0ubuntu0.12.10.1 Ubuntu 12.04 LTS: libavcodec53 4:0.8.5-0ubuntu0.12.04.1 libavformat53 4:0.8.5-0ubuntu0.12.04.1 Ubuntu 11.10: libavcodec53 4:0.7.6-0ubuntu0.11.10.3 libavformat53 4:0.7.6-0ubuntu0.11.10.3 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1705-1 CVE-2012-2783, CVE-2012-2791, CVE-2012-2797, CVE-2012-2798, CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804, CVE-2012-5144 Package Information: https://launchpad.net/ubuntu/+source/libav/6:0.8.5-0ubuntu0.12.10.1 https://launchpad.net/ubuntu/+source/libav/4:0.8.5-0ubuntu0.12.04.1 https://launchpad.net/ubuntu/+source/libav/4:0.7.6-0ubuntu0.11.10.3
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