Download Firefox

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox Privacy Notice

Mozilla Foundation Security Advisory 2010-01

Crashes with evidence of memory corruption (rv:1.9.1.8/ 1.9.0.18)

Announced
February 17, 2010
Reporter
Mozilla developers and community
Impact
Critical
Products
Firefox, SeaMonkey, Thunderbird
Fixed in
  • Firefox 3.0.18
  • Firefox 3.5.8
  • Firefox 3.6
  • SeaMonkey 2.0.3
  • Thunderbird 3.0.2

Description

Mozilla developers identified and fixed several stability bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these crashes 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.

Workaround

Disable JavaScript until a version containing these fixes can be installed.

References

Henri Sivonen, Boris Zbarsky, Zack Weinberg, Bob Clary, Martijn Wargers, and Paul Nickerson reported crashes in the browser engine.