=========================================================== Ubuntu Security Notice USN-861-1 November 24, 2009 libvorbis vulnerabilities CVE-2008-2009, CVE-2009-3379 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 8.04 LTS Ubuntu 8.10 Ubuntu 9.04 Ubuntu 9.10 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-2ubuntu0.3 Ubuntu 8.10: libvorbis0a 1.2.0.dfsg-3.1ubuntu0.8.10.2 Ubuntu 9.04: libvorbis0a 1.2.0.dfsg-3.1ubuntu0.9.04.2 Ubuntu 9.10: libvorbis0a 1.2.0.dfsg-6ubuntu0.1 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 ogg files with underpopulated Huffman trees. If a user were tricked into opening a specially crafted ogg file with an application that uses libvorbis, an attacker could cause a denial of service. (CVE-2008-2009) 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 cause a denial of service or possibly execute arbitrary code with the user's privileges. (CVE-2009-3379)