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=========================================================== Ubuntu Security Notice USN-825-1 August 24, 2009 libvorbis vulnerability CVE-2008-1420, CVE-2009-2663 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 8.04 LTS Ubuntu 8.10 Ubuntu 9.04 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 8.04 LTS: libvorbis0a 1.2.0.dfsg-2ubuntu0.2 Ubuntu 8.10: libvorbis0a 1.2.0.dfsg-3.1ubuntu0.8.10.1 Ubuntu 9.04: libvorbis0a 1.2.0.dfsg-3.1ubuntu0.9.04.1 After a standard system upgrade you need to restart any applications that use libvorbis, such as Totem and gtkpod, to effect the necessary changes. Details follow: It was discovered that libvorbis did not correctly handle certain malformed ogg files. If a user were tricked into opening a specially crafted ogg file with an application that uses libvorbis, an attacker could execute arbitrary code with the user's privileges. (CVE-2009-2663) USN-682-1 provided updated libvorbis packages to fix multiple security vulnerabilities. The upstream security patch to fix CVE-2008-1420 introduced a regression when reading sound files encoded with libvorbis 1.0beta1. This update corrects the problem. Original advisory details: It was discovered that libvorbis did not correctly handle certain malformed sound files. If a user were tricked into opening a specially crafted sound file with an application that uses libvorbis, an attacker could execute arbitrary code with the user's privileges. (CVE-2008-1420)