Mozilla Foundation Security Advisory 2013-63

Miscellaneous memory safety hazards (rv:23.0 / rv:17.0.8)

Announced

August 6, 2013

Reporter

Mozilla Developers

Impact

Critical

Products

Firefox, Firefox ESR, SeaMonkey, Thunderbird, Thunderbird ESR

Fixed in

• Firefox 23
• Firefox ESR 17.0.8
• SeaMonkey 2.20
• Thunderbird 17.0.8
• Thunderbird ESR 17.0.8

Description

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 product because scripting is disabled, but are potentially a risk in browser or browser-like contexts.

References

Jeff Gilbert and Henrik Skupin reported memory safety problems and crashes that affect Firefox ESR 17, and Firefox 22.

• Memory safety bugs fixed in Firefox 17.0.8 and Firefox 23.0 (CVE-2013-1701)

Ben Turner, Christian Holler, Andrew McCreight, Gary Kwong, Jan Varga, and Jesse Ruderman reported memory safety problems and crashes that affect Firefox 22.

• Memory safety bugs fixed in Firefox 23.0 (CVE-2013-1702)