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Mozilla Foundation Security Advisory 2016-62

Miscellaneous memory safety hazards (rv:48.0 / rv:45.3)

Announced
August 2, 2016
Reporter
Mozilla Developers
Impact
Critical
Products
Firefox, Firefox ESR, Thunderbird
Fixed in
  • Firefox 48
  • Firefox ESR 45.3
  • Thunderbird 45.3

Description

Mozilla developers and community members reported 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

Carsten Book, Christian Holler, Gary Kwong, Jesse Ruderman, Andrew McCreight, Phil Ringnalda and Philipp reported memory safety problems and crashes that are fixed in Firefox ESR 45.3 and Firefox 48.

Christian Holler, Tyson Smith, Boris Zbarsky, Byron Campen, and Julian Seward reported memory safety problems and crashes that are fixed in Firefox 48.