Description
The browser engine in Mozilla Firefox 3 before 3.0.11, Thunderbird before 2.0.0.22, and SeaMonkey before 1.1.17 allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to (1) nsEventStateManager::GetContentState and nsNativeTheme::CheckBooleanAttr; (2) UnhookTextRunFromFrames and ClearAllTextRunReferences; (3) nsTextFrame::ClearTextRun; (4) IsPercentageAware; (5) PL_DHashTableFinish; (6) nsListBoxBodyFrame::GetNextItemBox; (7) AtomTableClearEntry, related to the atom table, DOM mutation events, and Unicode surrogates; (8) nsHTMLEditor::HideResizers; and (9) nsWindow::SetCursor, related to changing the cursor; and other vectors.
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 | 1.9.0.11-0lenny1 | DSA-1820-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.11-2.el5_3 | RHSA-2009:1095 |
| RHEL 5 | thunderbird | 2.0.0.22-2.el5_3 | RHSA-2009:1126 |
| RHEL 5 | xulrunner +2 | 1.9.0.11-3.el5_3 | RHSA-2009:1095 |
| RHEL 4 | firefox | 3.0.11-4.el4 | RHSA-2009:1095 |
| RHEL 4 | seamonkey +5 | 1.0.9-43.el4_8 | RHSA-2009:1096 |
| RHEL 4 | thunderbird | 1.5.0.12-23.el4 | RHSA-2009:1125 |
| RHEL 3 | seamonkey +9 | 1.0.9-0.38.el3 | RHSA-2009:1096 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 2.0.0.22-2.el5_3 | RHSA-2009:1126 |
Advisories 6
- RHSA-2009:1095 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:1125 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:1096 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1820-1 xulrunner - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1830-1 icedove - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2009:1126 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- 265068 vendor-advisory
- ADV-2009-1572 vdb-entry
- RHSA-2009:1096 vendor-advisory
- 1020800 vendor-advisory
- SSA:2009-178-01 vendor-advisory
- DSA-1830 vendor-advisory
- 35536 third-party-advisory
- 35602 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=490410
- https://bugzilla.mozilla.org/show_bug.cgi?id=451341
- RHSA-2009:1125 vendor-advisory
- 35326 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=429969
- https://bugzilla.mozilla.org/show_bug.cgi?id=489041
- oval:org.mitre.oval:def:9501 vdb-entry signature
- 35370 vdb-entry
- 55145 vdb-entry
- 35440 third-party-advisory
- FEDORA-2009-6411 vendor-advisory
- USN-782-1 vendor-advisory
- 55147 vdb-entry
- 35428 third-party-advisory
- 35431 third-party-advisory
- 35331 third-party-advisory
- 35468 third-party-advisory
- ADV-2009-2152 vdb-entry
- 35439 third-party-advisory
- FEDORA-2009-6366 vendor-advisory
- MDVSA-2009:141 vendor-advisory
- 55144 vdb-entry
- 55146 vdb-entry
- 35415 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=432068
- https://bugzilla.mozilla.org/show_bug.cgi?id=490425
- RHSA-2009:1095 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=380359
- https://bugzilla.mozilla.org/show_bug.cgi?id=490513
- https://bugzilla.redhat.com/show_bug.cgi?id=503568
- 1022376 vdb-entry
- SSA:2009-167-01 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=486398
- 35561 third-party-advisory
- http://www.mozilla.org/security/announce/2009/mfsa2009-24.html
- SSA:2009-176-01 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=431086
- https://bugzilla.mozilla.org/show_bug.cgi?id=472776
- DSA-1820 vendor-advisory
- RHSA-2009:1126 vendor-advisory
- 1022397 vdb-entry