Mozilla Foundation Security Advisory 2010-58
Title: Crash on Mac using fuzzed font in data: URL
Announced: September 7, 2010
Reporter: Marc Schoenefeld
Products: Firefox, Thunderbird, SeaMonkey
Fixed in: Firefox 3.6.9
Security researcher Marc Schoenefeld reported that a specially crafted font could be applied to a document and cause a crash on Mac systems. The crash showed signs of memory corruption and presumably could be used by an attacker to execute arbitrary code on a victim's computer.