Download Firefox

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox Privacy Notice

Mozilla Foundation Security Advisory 2012-92

Buffer overflow while rendering GIF images

Announced
November 20, 2012
Reporter
Atte Kettunen
Impact
Critical
Products
Firefox, Firefox ESR, SeaMonkey, Thunderbird, Thunderbird ESR
Fixed in
  • Firefox 17
  • Firefox ESR 10.0.11
  • SeaMonkey 2.14
  • Thunderbird 17
  • Thunderbird ESR 10.0.11

Description

Security researcher Atte Kettunen from OUSPG used the Address Sanitizer tool to discover a buffer overflow while rendering GIF format images. This issue is potentially exploitable and could lead to arbitrary code execution.

References