=========================================================== Ubuntu Security Notice USN-891-1 January 28, 2010 lintian vulnerabilities CVE-2009-4013, CVE-2009-4014, CVE-2009-4015 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS 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 6.06 LTS: lintian 1.23.16ubuntu2.1 Ubuntu 8.04 LTS: lintian 1.23.46ubuntu0.1 Ubuntu 8.10: lintian 1.24.3ubuntu0.1 Ubuntu 9.04: lintian 2.2.5ubuntu1.1 Ubuntu 9.10: lintian 2.2.17ubuntu1.1 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: Raphael Geissert discovered that lintian did not correctly validate certain filenames when processing input. If a user or an automated system were tricked into running lintian on a specially crafted set of files, a remote attacker could execute arbitrary code with user privileges.