Description
The layout engine in Mozilla Firefox 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 certain vectors that trigger memory corruption and assertion failures.
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 | xulrunner +2 | 1.9.0.7-1.el5 | RHSA-2009:0315 |
| RHEL 4 | firefox | 3.0.7-1.el4 | RHSA-2009:0315 |
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 6
- RHSA-2009:0315 Red Hat Security Advisory: firefox 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:2009:012 vendor-advisory
- DSA-1830 vendor-advisory
- ADV-2009-0632 vdb-entry
- FEDORA-2009-3101 vendor-advisory
- DSA-1751 vendor-advisory
- SSA:2009-083-02 vendor-advisory
- oval:org.mitre.oval:def:6755 vdb-entry signature
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=424276%2C435209%2C436965%2C460706%2C466057%2C468578%2C471594%2C472502
- oval:org.mitre.oval:def:6196 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
- 34527 third-party-advisory
- 34145 third-party-advisory
- oval:org.mitre.oval:def:11314 vdb-entry signature
- SSA:2009-083-03 vendor-advisory
- 34462 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2009-069.htm
- 1021795 vdb-entry
- MDVSA-2009:075 vendor-advisory
- 33990 vdb-entry
- 34383 third-party-advisory
- oval:org.mitre.oval:def:5250 vdb-entry signature
- oval:org.mitre.oval:def:6163 vdb-entry signature
- http://support.avaya.com/japple/css/japple?temp.documentID=366362&temp.productID=154235&temp.releaseID=361845&temp.bucketID=126655&PAGE=Document