Mozilla Foundation Security Advisory 2014-34

Miscellaneous memory safety hazards (rv:29.0 / rv:24.5)

April 29, 2014
Mozilla Developers
Firefox, Firefox ESR, SeaMonkey, Thunderbird
Fixed in
  • Firefox 29
  • Firefox ESR 24.5
  • SeaMonkey 2.26
  • Thunderbird 24.5


Mozilla developers and community identified 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 and Seamonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts.



Bobby Holley, Carsten Book, Christoph Diehl, Gary Kwong, Jan de Mooij, Jesse Ruderman, Nathan Froyd, and Christian Holler reported memory safety problems and crashes that affect Firefox ESR 24.4 and Firefox 28.

Carsten Book, Christian Holler, Gary Kwong, John Schoenick, Karl Tomlinson, Vladimir Vukicevic, and Jan de Mooij reported memory safety problems and crashes that affect Firefox 28.