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HistoryApr 18, 2008 - 12:00 a.m.

Mozilla Foundation Security Advisory 2008-20

2008-04-1800:00:00
vulners.com
20

Mozilla Foundation Security Advisory 2008-20

Title: Crash in JavaScript garbage collector
Impact: Critical
Announced: April 16, 2008
Reporter: Mozilla Developers
Products: Firefox, Thunderbird, SeaMonkey

Fixed in: Firefox 2.0.0.14
Thunderbird 2.0.0.14
SeaMonkey 1.1.10
Description

Fixes for security problems in the JavaScript engine described in MFSA 2008-15 (CVE-2008-1237) introduced a stability problem, where some users experienced crashes during JavaScript garbage collection. This is being fixed primarily to address stability concerns. We have no demonstration that this particular crash is exploitable but are issuing this advisory because some crashes of this type have been shown to be exploitable in the past.

Thunderbird shares the browser engine with Firefox and could be vulnerable if JavaScript were to be enabled in mail. This is not the default setting and we strongly discourage users from running JavaScript in mail.
Workaround

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

* https://bugzilla.mozilla.org/show_bug.cgi?id=425576
* CVE-2008-1380