Mozilla Foundation Security Advisory 2008-42

2008-09-29T00:00:00
ID SECURITYVULNS:DOC:20580
Type securityvulns
Reporter Securityvulns
Modified 2008-09-29T00:00:00

Description

Mozilla Foundation Security Advisory 2008-42

Title: Crashes with evidence of memory corruption (rv:1.9.0.2/1.8.1.17) Impact: Critical Announced: September 23, 2008 Reporter: Mozilla developers and community Products: Firefox, Thunderbird, SeaMonkey

Fixed in: Firefox 3.0.2 Firefox 2.0.0.17 Thunderbird 2.0.0.17 SeaMonkey 1.1.12 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.

Drew Yao of Apple Product Security reported two crashes in Mozilla image rendering code. This vulnerability only affected Firefox 3.

David Maciejak of Fortinet's FortiGuard Global Security Research Team also reported a crash in graphics rendering which only affected Firefox 3.

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. Without further investigation we cannot rule out the possibility that for some of these an attacker might be able to prepare memory for exploitation through some means other than JavaScript such as large images. Workaround

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

Jesse Ruderman reported a crash in the layout engine.

* layout engine crash
* CVE-2008-4061

Igor Bukanov, Philip Taylor, Georgi Guninski, and Antoine Labour reported crashes in the JavaScript engine.

* JavaScript engine crashes
* CVE-2008-4062

Jesse Ruderman, Bob Clary, and Martijn Wargers reported crashes in the layout engine which only affected Firefox 3.

* layout engine crashes
* CVE-2008-4063

David Maciejak and Drew Yao reported crashes in graphics rendering which only affected Firefox 3.

* graphics rendering crashes
* CVE-2008-4064