Description
Use-after-free vulnerability in the HTML parser in Mozilla Firefox 3.0.x before 3.0.18 and 3.5.x before 3.5.8, Thunderbird before 3.0.2, and SeaMonkey before 2.0.3 allows remote attackers to execute arbitrary code via unspecified method calls that attempt to access freed objects in low-memory situations.
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 | 1.9.0.18-1 | DSA-1999-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.18-1.el5_4 | RHSA-2010:0112 |
| RHEL 5 | thunderbird | 2.0.0.24-2.el5_4 | RHSA-2010:0153 |
| RHEL 5 | xulrunner +2 | 1.9.0.18-1.el5_4 | RHSA-2010:0112 |
| RHEL 4 | firefox | 3.0.18-1.el4 | RHSA-2010:0112 |
| RHEL 4 | seamonkey +5 | 1.0.9-52.el4_8 | RHSA-2010:0113 |
| RHEL 4 | thunderbird | 1.5.0.12-25.el4 | RHSA-2010:0154 |
| RHEL 3 | seamonkey +9 | 1.0.9-0.50.el3 | RHSA-2010:0113 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 2.0.0.24-2.el5_4 | RHSA-2010:0153 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaThunderbird | 45.5.1-1.1 | openSUSE-SU-2024:10230-1 |
Advisories 6
- RHSA-2010:0112 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2010:0154 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2010:0113 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1999-1 xulrunner - 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
- RHSA-2010:0153 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jan 14, 2026
References
- USN-895-1 vendor-advisory
- RHSA-2010:0153 vendor-advisory
- http://secunia.com/secunia_research/2009-45/
- 38847 third-party-advisory
- SUSE-SA:2010:015 vendor-advisory
- RHSA-2010:0113 vendor-advisory
- MDVSA-2010:051 vendor-advisory
- MDVSA-2010:042 vendor-advisory
- http://www.mozilla.org/security/announce/2010/mfsa2010-03.html
- FEDORA-2010-1936 vendor-advisory
- RHSA-2010:0112 vendor-advisory
- ADV-2010-0650 vdb-entry
- FEDORA-2010-1932 vendor-advisory
- oval:org.mitre.oval:def:11227 vdb-entry signature
- 38770 third-party-advisory
- mozilla-htmlparser-code-exec(56361) vdb-entry
- DSA-1999 vendor-advisory
- RHSA-2010:0154 vendor-advisory
- FEDORA-2010-1727 vendor-advisory
- 38772 third-party-advisory
- USN-896-1 vendor-advisory
- ADV-2010-0405 vdb-entry
- 37242 third-party-advisory
- oval:org.mitre.oval:def:8615 vdb-entry signature
- FEDORA-2010-3230 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=526500
- FEDORA-2010-3267 vendor-advisory
- 20100218 Secunia Research: Mozilla Firefox Memory Corruption Vulnerability mailing-list