Description
The layout engine in Mozilla Firefox 2 and 3 before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey 1.1.15 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to nsCSSStyleSheet::GetOwnerNode, events, and garbage collection, which triggers memory corruption.
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 | icedove | 2.0.0.22-0lenny1 | DSA-1830-1 |
| Debian 5.0 | xulrunner | 1.9.0.7-0lenny1 | DSA-1751-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.7-1.el5 | RHSA-2009:0315 |
| RHEL 5 | thunderbird | 2.0.0.21-1.el5 | RHSA-2009:0258 |
| RHEL 5 | xulrunner +2 | 1.9.0.7-1.el5 | RHSA-2009:0315 |
| RHEL 4 | firefox | 3.0.7-1.el4 | RHSA-2009:0315 |
| RHEL 4 | seamonkey +5 | 1.0.9-38.el4 | RHSA-2009:0325 |
| RHEL 4 | thunderbird | 1.5.0.12-19.el4 | RHSA-2009:0258 |
| RHEL 3 | seamonkey +9 | 1.0.9-0.34.el3 | RHSA-2009:0325 |
| RHEL 2 | seamonkey +9 | 1.0.9-0.30.el2 | RHSA-2009:0325 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 2.0.0.21-1.el5 | RHSA-2009:0258 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 45.5.1-1.1 | openSUSE-SU-2024:10230-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 8
- RHSA-2009:0315 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:0325 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:0258 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1751-1 xulrunner - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1830-1 icedove - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10230-1 MozillaThunderbird-45.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 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
- RHSA-2009:0315 vendor-advisory
- SUSE-SA:2009:023 vendor-advisory
- SUSE-SA:2009:012 vendor-advisory
- DSA-1830 vendor-advisory
- ADV-2009-0632 vdb-entry
- oval:org.mitre.oval:def:5945 vdb-entry signature
- FEDORA-2009-3101 vendor-advisory
- DSA-1751 vendor-advisory
- oval:org.mitre.oval:def:9609 vdb-entry signature
- SSA:2009-083-02 vendor-advisory
- RHSA-2009:0325 vendor-advisory
- RHSA-2009:0258 vendor-advisory
- oval:org.mitre.oval:def:5703 vdb-entry signature
- 34140 third-party-advisory
- http://www.mozilla.org/security/announce/2009/mfsa2009-07.html
- MDVSA-2009:083 vendor-advisory
- 34464 third-party-advisory
- 34272 third-party-advisory
- 34417 third-party-advisory
- 34527 third-party-advisory
- 34145 third-party-advisory
- FEDORA-2009-2882 vendor-advisory
- FEDORA-2009-2884 vendor-advisory
- SSA:2009-083-03 vendor-advisory
- 34137 third-party-advisory
- 34462 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2009-069.htm
- 1021795 vdb-entry
- USN-741-1 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=475136
- oval:org.mitre.oval:def:6097 vdb-entry signature
- 34324 third-party-advisory
- MDVSA-2009:075 vendor-advisory
- 33990 vdb-entry
- oval:org.mitre.oval:def:6811 vdb-entry signature
- 34383 third-party-advisory
- 34387 third-party-advisory
- http://support.avaya.com/japple/css/japple?temp.documentID=366362&temp.productID=154235&temp.releaseID=361845&temp.bucketID=126655&PAGE=Document