Description
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, and Thunderbird before 3.1.11, allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown 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 6.0 | iceape | 2.0.11-6 | DSA-2269-1 |
| Debian 6.0 | icedove | 3.0.11-1+squeeze3 | DSA-2273-3 |
| Debian 6.0 | iceweasel | 3.5.16-8 | DSA-2268-1 |
| Debian 5.0 | xulrunner | 1.9.0.19-12 | DSA-2268-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 3.6.18-1.el6_1 | RHSA-2011:0885 |
| RHEL 6 | thunderbird | 3.1.11-2.el6_1 | RHSA-2011:0886 |
| RHEL 6 | xulrunner +1 | 1.9.2.18-2.el6_1 | RHSA-2011:0885 |
| RHEL 5 | firefox | 3.6.18-1.el5_6 | RHSA-2011:0885 |
| RHEL 5 | thunderbird | 2.0.0.24-18.el5_6 | RHSA-2011:0887 |
| RHEL 5 | xulrunner +1 | 1.9.2.18-2.el5_6 | RHSA-2011:0885 |
| RHEL 4 | firefox | 3.6.18-2.el4 | RHSA-2011:0885 |
| RHEL 4 | seamonkey +5 | 1.0.9-71.el4 | RHSA-2011:0888 |
| RHEL 4 | thunderbird | 1.5.0.12-39.el4 | RHSA-2011:0887 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 2.0.0.24-18.el5_6 | RHSA-2011:0887 |
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 10
- RHSA-2011:0888 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:0886 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:0887 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:0885 Red Hat Security Advisory: firefox security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2269-1 iceape - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2268-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2273-3 icedove - multiple issues 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
- https://bugzilla.mozilla.org/show_bug.cgi?id=639648
- MDVSA-2011:111 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=643051
- 45002 third-party-advisory
- http://support.avaya.com/css/P8/documents/100145333
- USN-1149-1 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=629858
- http://support.avaya.com/css/P8/documents/100144854
- RHSA-2011:0887 vendor-advisory
- RHSA-2011:0885 vendor-advisory
- DSA-2268 vendor-advisory
- RHSA-2011:0888 vendor-advisory
- thunderbird-memory-ce(68128) vdb-entry
- oval:org.mitre.oval:def:14123 vdb-entry signature
- http://www.mozilla.org/security/announce/2011/mfsa2011-19.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=642338
- https://bugzilla.mozilla.org/show_bug.cgi?id=645572
- DSA-2269 vendor-advisory
- SUSE-SA:2011:028 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=646662
- https://bugzilla.mozilla.org/show_bug.cgi?id=626262
- RHSA-2011:0886 vendor-advisory
- DSA-2273 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=642734