Mandriva Linux Security Advisory MDKSA-2006-114: Integer overflows were reported in the GD Graphics Library (libgd) 2.0.28, and possibly other versions. These overflows allow remote attackers to cause a denial of service and possibly execute arbitrary code via PNG image files with large image rows values that lead to a heap-based buffer overflow in the gdImageCreateFromPngCtx() function. Libwmf contains an embedded copy of the GD library code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/47869/MDKSA-2006-114.txt
Source: https://packetstormsecurity.com/files/47869/Mandriva-Linux-Security-Advisory-2006.114.html