Description
Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a multipart/x-mixed-replace image.
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.
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 7
- 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
- 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
- http://www.mozilla.org/security/announce/2011/mfsa2011-21.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=639303
- MDVSA-2011:111 vendor-advisory
- 45002 third-party-advisory
- http://support.avaya.com/css/P8/documents/100145333
- USN-1149-1 vendor-advisory
- oval:org.mitre.oval:def:13872 vdb-entry signature
- http://support.avaya.com/css/P8/documents/100144854
- RHSA-2011:0887 vendor-advisory
- RHSA-2011:0885 vendor-advisory
- RHSA-2011:0888 vendor-advisory
- SUSE-SA:2011:028 vendor-advisory
- RHSA-2011:0886 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=638018