CVE-2009-3978
The nsGIFDecoder2::GifWrite function in decoders/gif/nsGIFDecoder2.cpp in libpr0n in Mozilla Firefox before 3.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an animated GIF file with a large image size, a different vulnerability than CVE-2009-3373.
Date published : 2009-11-18
http://hg.mozilla.org/releases/mozilla-1.9.1/rev/edf189567edc