Mozilla Foundation Security Advisory 2013-22
Title: Out-of-bounds read in image rendering
Announced: February 19, 2013
Reporter: Atte Kettunen
Products: Firefox, Thunderbird, SeaMonkey
Fixed in: Firefox 19.0
Using the Address Sanitizer tool, security researcher Atte Kettunen from OUSPG found an out-of-bounds read while rendering GIF format images. This could cause a non-exploitable crash and could also attempt to render normally inaccesible data as part of the image.