This is a heap overflow exploit that leverages a local color map parsing bug in Firefox versions 3.5.4 and below, 3.0.15 and below, and SeaMonkey versions 2.0 and below…. This is a heap overflow exploit that leverages a local color map parsing bug in Firefox versions 3.5.4 and below, 3.0.15 and below, and SeaMonkey versions 2.0 and below.

Read more http://packetstormsecurity.com/files/122846/local_color_map_exploit.tgz