Mandriva Linux Security Advisory – Buffer overflow in the gdImageStringFTEx function in gdft.c in the GD Graphics Library 2.0.33 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted string with a JIS encoded font. Libwmf uses an embedded copy of the gd source and may also be affected by this issue.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/54255/MDKSA-2007-036.txt
Source: https://packetstormsecurity.com/files/54255/Mandriva-Linux-Security-Advisory-2007.036.html