You are here: Security Center > Mozilla Foundation Security Advisories > MFSA 2013-104

Mozilla Foundation Security Advisory 2013-104

Title: Miscellaneous memory safety hazards (rv:26.0 / rv:24.2)
Impact: Critical
Announced: December 10, 2013
Reporter: Mozilla Developers
Products: Firefox, Thunderbird, Seamonkey

Fixed in: Firefox 26
  Firefox ESR 24.2
  Thunderbird 24.2
  Seamonkey 2.23


Mozilla developers 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.


Ben Turner, Bobby Holley, Jesse Ruderman, and Christian Holler reported memory safety problems and crashes that affect Firefox ESR 24.1 and Firefox 25.

Christian Holler and Christoph Diehl reported memory safety problems and crashes that affect Firefox 25.