Debian Security Advisory 1078-1: Andrey Kiselev discovered a problem in the TIFF library that may allow an attacker with a specially crafted TIFF image with Yr/Yg/Yb values that exceed the YCR/YCG/YCB values to crash the library and hence the surrounding application.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/46771/dsa-1078-1.txt
Source: https://packetstormsecurity.com/files/46771/Debian-Linux-Security-Advisory-1078-1.html