Vulnerability CVE-2009-2477
Published: 2009-07-15   Modified: 2012-02-13

Description:
js/src/jstracer.cpp in the Just-in-time (JIT) JavaScript compiler (aka TraceMonkey) in Mozilla Firefox 3.5 before 3.5.1 allows remote attackers to execute arbitrary code via certain use of the escape function that triggers access to uninitialized memory locations, as originally demonstrated by a document containing P and FONT elements.

See advisories in our WLB2 database:
Topic
Author
Date
High
Mozilla Firefox 3.5 (Font tags) Remote Buffer Overflow Exploit
Simon Berry-Byrn...
17.07.2009

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Mozilla -> Firefox 

 References:
http://blog.mozilla.com/security/2009/07/14/critical-javascript-vulnerability-in-firefox-35/
http://isc.sans.org/diary.html?storyid=6796
http://sunsolve.sun.com/search/document.do?assetkey=1-66-266148-1
http://voices.washingtonpost.com/securityfix/2009/07/stopgap_fix_for_critical_firef.html
http://www.exploit-db.com/exploits/9137
http://www.exploit-db.com/exploits/9181
http://www.h-online.com/security/First-Zero-Day-Exploit-for-Firefox-3-5--/news/113761
http://www.kb.cert.org/vuls/id/443060
http://www.mozilla.org/security/announce/2009/mfsa2009-41.html
http://www.securityfocus.com/bid/35660
http://www.vupen.com/english/advisories/2009/1868
https://bugzilla.mozilla.org/show_bug.cgi?id=503286
https://www.exploit-db.com/exploits/40936/
https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00909.html
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