Your system may not meet the requirements for Firefox, but you can try one of these versions:

Your system doesn't meet the requirements to run Firefox.

Your system doesn't meet the requirements to run Firefox.

Please follow these instructions to install Firefox.

Firefox Privacy Notice

Mozilla Foundation Security Advisory 2016-37

Font vulnerabilities in the Graphite 2 library

Announced
March 8, 2016
Reporter
Holger Fuhrmannek, Tyson Smith
Impact
Critical
Products
Firefox, Firefox ESR, Thunderbird
Fixed in
  • Firefox 45
  • Firefox ESR 38.7
  • Thunderbird 38.7
  • Thunderbird 45

Description

Security researcher Holger Fuhrmannek and Mozilla security engineer Tyson Smith reported a number of security vulnerabilities in the Graphite 2 library affecting version 1.3.5.

The issue reported by Holger Fuhrmannek is a mechanism to induce stack corruption with a malicious graphite font. This leads to a potentially exploitable crash when the font is loaded.

Tyson Smith used the Address Sanitizer tool in concert with a custom software fuzzer to find a series of uninitialized memory, out-of-bounds read, and out-of-bounds write errors when working with fuzzed graphite fonts.

To address these security vulnerabilities, Firefox 45 and Firefox ESR 38.7 have been updated to Graphite 2 version 1.3.6.

References