Description
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.23 and 4.x through 6, Thunderbird before 7.0, and SeaMonkey before 2.4 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 | 2.0.11-8 | DSA-2312-1 |
| Debian 6.0 | icedove | 3.0.11-1+squeeze5 | DSA-2317-1 |
| Debian 6.0 | iceweasel | 3.5.16-10 | DSA-2313-1 |
| Debian 5.0 | xulrunner | 1.9.0.19-14 | DSA-2313-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 3.6.23-2.el6_1 | RHSA-2011:1341 |
| RHEL 6 | thunderbird | 3.1.15-1.el6_1 | RHSA-2011:1342 |
| RHEL 6 | xulrunner +1 | 1.9.2.23-1.el6_1.1 | RHSA-2011:1341 |
| RHEL 5 | firefox | 3.6.23-2.el5_7 | RHSA-2011:1341 |
| RHEL 5 | xulrunner +1 | 1.9.2.23-1.el5_7 | RHSA-2011:1341 |
| RHEL 4 | firefox | 3.6.23-1.el4 | RHSA-2011:1341 |
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-2011:1342 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:1341 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2317-1 icedove - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2313-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2312-1 iceape - several 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
- MDVSA-2011:139 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=660453
- http://www.mozilla.org/security/announce/2011/mfsa2011-36.html
- oval:org.mitre.oval:def:13957 vdb-entry signature
- DSA-2312 vendor-advisory
- 46315 third-party-advisory
- RHSA-2011:1341 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=665360
- MDVSA-2011:141 vendor-advisory
- MDVSA-2011:142 vendor-advisory
- openSUSE-SU-2011:1076 vendor-advisory
- DSA-2317 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=662215
- MDVSA-2011:140 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=655098
- DSA-2313 vendor-advisory