Description
Mozilla Firefox 3.0.7 on Windows 7 allows remote attackers to execute arbitrary code via unknown vectors related to the _moveToEdgeShift XUL tree method, which triggers garbage collection on objects that are still in use, as demonstrated by Nils during a PWN2OWN competition at CanSecWest 2009.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | xulrunner | 1.9.0.7-0lenny2 | DSA-1756-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | xulrunner +2 | 1.9.0.7-3.el5 | RHSA-2009:0397 |
| RHEL 4 | firefox | 3.0.7-3.el4 | RHSA-2009:0397 |
| RHEL 4 | seamonkey +5 | 1.0.9-40.el4 | RHSA-2009:0398 |
| RHEL 3 | seamonkey +9 | 1.0.9-0.36.el3 | RHSA-2009:0398 |
| RHEL 2 | seamonkey +9 | 1.0.9-0.32.el2 | RHSA-2009:0398 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 5
- RHSA-2009:0397 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:0398 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1756-1 xulrunner - multiple vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 1021878 vdb-entry
- http://dvlabs.tippingpoint.com/blog/2009/03/18/pwn2own-2009-day-1---safari-internet-explorer-and-firefox-taken-down-by-four-zero-day-exploits
- http://twitter.com/tippingpoint1/status/1351635812
- 34510 third-party-advisory
- FEDORA-2009-3101 vendor-advisory
- 34511 third-party-advisory
- MDVSA-2009:084 vendor-advisory
- RHSA-2009:0397 vendor-advisory
- http://cansecwest.com/index.html
- SUSE-SA:2009:022 vendor-advisory
- 34505 third-party-advisory
- 34521 third-party-advisory
- RHSA-2009:0398 vendor-advisory
- 20090330 ZDI-09-015: Mozilla Firefox XUL _moveToEdgeShift() Memory Corruption Vulnerability mailing-list
- 34471 third-party-advisory
- http://www.mozilla.org/security/announce/2009/mfsa2009-13.html
- USN-745-1 vendor-advisory
- 34527 third-party-advisory
- 34181 vdb-entry
- DSA-1756 vendor-advisory
- 34792 third-party-advisory
- http://news.cnet.com/8301-1009_3-10199652-83.html
- http://blogs.zdnet.com/security/?p=2934
- http://www.zerodayinitiative.com/advisories/ZDI-09-015
- oval:org.mitre.oval:def:11368 vdb-entry signature
- 52896 vdb-entry
- ADV-2009-0864 vdb-entry
- FEDORA-2009-3100 vendor-advisory
- http://www.h-online.com/security/Pwn2Own-2009-Safari-IE-8-and-Firefox-exploited--/news/112889
- 34549 third-party-advisory
- 34550 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2009-113.htm
- http://dvlabs.tippingpoint.com/blog/2009/02/25/pwn2own-2009
- FEDORA-2009-3099 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=484320
- http://blogs.zdnet.com/security/?p=2941