Ubuntu Security Notice 376-1 – M. Joonas Pihlaja discovered that imlib2 did not sufficiently verify the validity of ARGB, JPG, LBM, PNG, PNM, TGA, and TIFF images. If a user were tricked into viewing or processing a specially crafted image with an application that uses imlib2, the flaws could be exploited to execute arbitrary code with the user’s privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/51655/USN-376-1.txt
Source: https://packetstormsecurity.com/files/51655/Ubuntu-Security-Notice-376-1.html