Mandriva Linux Security Advisory – A flaw how libpng handled malformed images was discovered. An attacker able to create a carefully crafted PNG image could cause an application linked with libpng to crash when the file was manipulated.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/57069/MDKSA-2007-116.txt
Source: https://packetstormsecurity.com/files/57069/Mandriva-Linux-Security-Advisory-2007.116.html