Mozilla Foundation Security Advisory 2011-42

Potentially exploitable crash in the YARR regular expression library

Announced

September 27, 2011

Reporter

Aki Helin

Impact

Critical

Products

Firefox, SeaMonkey, Thunderbird

Fixed in

• Firefox 7
• SeaMonkey 2.4
• Thunderbird 7

Description

Security researcher Aki Helin reported a potentially exploitable crash in the YARR regular expression library used by JavaScript.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=653672
• https://bugs.webkit.org/show_bug.cgi?id=61585
• CVE-2011-3232