Mozilla Foundation Security Advisory 2014-67

Miscellaneous memory safety hazards (rv:32.0 / rv:31.1 / rv:24.8)

September 2, 2014
Mozilla Developers
Firefox, Firefox ESR, SeaMonkey, Thunderbird
Fixed in
  • Firefox 32
  • Firefox ESR 24.8
  • Firefox ESR 31.1
  • SeaMonkey 2.29
  • Thunderbird 24.8
  • Thunderbird 31.1


Mozilla developers and community identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code.

In general these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled, but are potentially a risk in browser or browser-like contexts.


Jan de Mooij reported a memory safety problem that affects Firefox ESR 24.7, ESR 31 and Firefox 31.

Christian Holler, Jan de Mooij, Karl Tomlinson, Randell Jesup, Gary Kwong, Jesse Ruderman, and JW Wang reported memory safety problems and crashes that affect Firefox ESR 31 and Firefox 31.

Gary Kwong, Christian Holler, and David Weir reported memory safety problems and crashes that affect Firefox 31.