Description
Mozilla Firefox before 3.0.19, 3.5.x before 3.5.9, and 3.6.x before 3.6.2, and SeaMonkey before 2.0.4, frees the contents of the window.navigator.plugins array while a reference to an array element is still active, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors, related to a "dangling pointer vulnerability."
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 | 1.9.0.19-1 | DSA-2027-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.19-1.el5_5 | RHSA-2010:0332 |
| RHEL 5 | thunderbird | 2.0.0.24-6.el5 | RHSA-2010:0545 |
| RHEL 5 | xulrunner +2 | 1.9.0.19-1.el5_5 | RHSA-2010:0332 |
| RHEL 4 | firefox | 3.0.19-1.el4 | RHSA-2010:0332 |
| RHEL 4 | seamonkey +5 | 1.0.9-54.el4_8 | RHSA-2010:0333 |
| RHEL 4 | thunderbird | 1.5.0.12-28.el4 | RHSA-2010:0544 |
| RHEL 3 | seamonkey +9 | 1.0.9-0.52.el3 | RHSA-2010:0333 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 2.0.0.24-6.el5 | RHSA-2010:0545 |
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 7
- RHSA-2010:0545 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0544 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0332 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0333 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2027-1 xulrunner - several 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
- 20100402 ZDI-10-049: Mozilla Firefox PluginArray nsMimeType Dangling Pointer Remote Code Execution Vulnerability mailing-list
- 39397 third-party-advisory
- RHSA-2010:0333 vendor-advisory
- 39308 third-party-advisory
- 39136 third-party-advisory
- firefox-nspluginarray-code-execution(57393) vdb-entry
- ADV-2010-0781 vdb-entry
- USN-921-1 vendor-advisory
- 1023776 vdb-entry
- http://www.mozilla.org/security/announce/2010/mfsa2010-19.html
- oval:org.mitre.oval:def:7622 vdb-entry signature
- SUSE-SR:2010:013 vendor-advisory
- ADV-2010-0764 vdb-entry
- http://www.zerodayinitiative.com/advisories/ZDI-10-049
- https://bugzilla.mozilla.org/show_bug.cgi?id=538310
- ADV-2010-0765 vdb-entry
- MDVSA-2010:070 vendor-advisory
- 38566 third-party-advisory
- oval:org.mitre.oval:def:10833 vdb-entry signature
- 39117 third-party-advisory
- 39243 third-party-advisory
- ADV-2010-0748 vdb-entry
- ADV-2010-0849 vdb-entry
- DSA-2027 vendor-advisory
- RHSA-2010:0332 vendor-advisory
- 39240 third-party-advisory