55846 : Mozilla Firefox Just-in-time (JIT) JavaScript Compiler js/src/jstracer.cpp font HTML Tag Handling Memory Corruption
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
23	1247	over 2 years ago	about 1 year ago	24 times	90%

Timeline

Disclosure Date	Exploit Publish Date	Vendor Solution Date
2009-07-13	2009-07-13	2009-07-16

Days of Exposure
3 days

Keywords

6868125, 6861719

Description

A memory corruption flaw exists in Firefox. The Just-in-Time (JIT) compiler can enter a corrupt state following native function calls resulting in memory corruption. With a specially crafted request, an attacker can cause arbitrary code execution resulting in a loss of integrity.

Classification

Location: Remote / Network Access, Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Workaround, Upgrade
Exploit: Exploit Public, Exploit Commercial
Disclosure: Vendor Verified, Uncoordinated Disclosure, Discovered in the Wild
OSVDB: Web Related

Solution

Upgrade to version 3.5.1 or higher, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround: disable JavaScript.

Products

Mozilla Organization

Firefox

3.5

References

CVE ID: 2009-2477 (see also: NVD)
Bugtraq ID: 35660
Secunia Advisory ID: 35798 35964
CERT VU: 443060
Metasploit ID: 55846
Milw0rm: 9137 9214
Exploit Database: 9137 9214
Vendor Specific News/Changelog Entry: http://blog.mozilla.com/security/2009/07/14/critical-javascript-vulnerability-in-firefox-35/
https://bugzilla.mozilla.org/show_bug.cgi?id=503286
https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00900.html
https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00901.html
Generic Exploit URL: http://immunitysec.com
Other Advisory URL: http://isc.sans.org/diary.html?storyid=6796
http://voices.washingtonpost.com/securityfix/2009/07/stopgap_fix_for_critical_firef.html
http://www.h-online.com/security/First-Zero-Day-Exploit-for-Firefox-3-5--/news/113761
http://www.saintcorporation.com/cgi-bin/exploit_info/firefox_jitescapefunction_memory_corruption
http://www.vupen.com/english/advisories/2009/1868
Vendor Specific Advisory URL: http://sunsolve.sun.com/search/document.do?assetkey=1-66-266148-1
http://www.mozilla.org/security/announce/2009/mfsa2009-41.html
News Article: http://www.scmagazineus.com/Firefox-releases-update-to-fix-severe-vulnerability/article/140255/

Tools & Filters

Snort	15696 15697 15698 15997
	39853

Credit

zbyte -
Simon Berry-Byrne -

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2009-07-16 | Disagree?

Blogs

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