Ubuntu Security Notice USN-90-1 – Tavis Ormandy discovered a format string vulnerability in ImageMagick’s file name handling. Specially crafted file names could cause a program using ImageMagick to crash, or possibly even cause execution of arbitrary code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/36451/USN-90-1.txt
Source: https://packetstormsecurity.com/files/36451/Ubuntu-Security-Notice-90-1.html