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Mozilla Foundation Security Advisory 2015-79

Miscellaneous memory safety hazards (rv:40.0 / rv:38.2)

Announced
August 11, 2015
Reporter
Mozilla Developers
Impact
Critical
Products
Firefox, Firefox ESR, Firefox OS, SeaMonkey, Thunderbird
Fixed in
  • Firefox 40
  • Firefox ESR 38.2
  • Firefox OS 2.5
  • SeaMonkey 2.35
  • Thunderbird 38.2

Description

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.

References

Gary Kwong, Christian Holler, and Byron Campen reported memory safety problems and crashes that affect Firefox ESR 38.1 and Firefox 39.

Tyson Smith, Bobby Holley, Chris Coulson, Byron Campen, and Eric Rahm reported memory safety problems and crashes that affect Firefox 39.