USN-2183-1: dpkg vulnerability Publication date: 28 April 2014 Overview: A malicious source package could write files outside the unpack directory. Releases: 14.04 LTS 13.10 12.10 12.04 10.04 Details: Jakub Wilk discovered that dpkg incorrectly handled certain paths and symlinks when unpacking source packages. If a user or an automated system were tricked into unpacking a specially crafted source package, a remote attacker could modify files outside the target unpack directory, leading to a denial of service or potentially gaining access to the system. Update instructions: In general, a standard system update will make all the necessary changes. The problem can be corrected by updating your system to the following package versions: 14.04 LTS trusty: libdpkg-perl - 1.17.5ubuntu5.1 13.10 saucy: libdpkg-perl - 1.16.12ubuntu1.1 12.10 quantal: libdpkg-perl - 1.16.7ubuntu6.1 12.04 precise: libdpkg-perl - 1.16.1.2ubuntu7.3 10.04 lucid: dpkg-dev - 1.15.5.6ubuntu4.7 reduce your security exposure: Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. References: CVE-2014-0471 Related notices: USN-2183-2