Mozilla Foundation Security Advisory 2016-49

Miscellaneous memory safety hazards (rv:47.0 / rv:45.2)

Announced

June 7, 2016

Reporter

Mozilla Developers

Impact

Critical

Products

Firefox, Firefox ESR, Thunderbird

Fixed in

• Firefox 47
• Firefox ESR 45.2
• Thunderbird 45.2

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

Christian Holler, Gary Kwong, Jesse Ruderman, Tyson Smith, Timothy Nikkel, Sylvestre Ledru, Julian Seward, Olli Pettay, and Karl Tomlinson reported memory safety problems and crashes that are fixed in Firefox ESR 45.2 and Firefox 47.

• Memory safety bugs fixed in Firefox ESR 45.2 and Firefox 47 (CVE-2016-2818)

Christoph Diehl, Julian Hector, Jan de Mooij, Mats Palmgren, and Tooru Fujisawa reported memory safety problems and crashes that are fixed in Firefox 47.

• Memory safety bugs fixed in Firefox 47 (CVE-2016-2815)