Ubuntu Security Notice 891-1 – It was 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.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/85730/USN-891-1.txt
Source: https://packetstormsecurity.com/files/85730/Ubuntu-Security-Notice-891-1.html