Description
Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Mozilla Firefox 3.5 - Unicode Remote Buffer Overflow (PoC) EDB-9158 · dos · Jul 15, 2009 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://websecurity.com.ua/3338/
- https://bugzilla.mozilla.org/show_bug.cgi?id=504342
- FEDORA-2009-7898 vendor-advisory
- 9158 exploit
- http://blog.mozilla.com/security/2009/07/19/milw0rm-9158-stack-overflow-crash-not-exploitable-cve-2009-2479/
- 20090719 DoS vulnerabilities in Firefox, Internet Explorer, Opera and Chrome mailing-list
- 1022580 vdb-entry
- 35707 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=504343
- 55931 vdb-entry
- firefox-unicode-data-dos(51729) vdb-entry