Description
Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, and SeaMonkey before 2.0.11, does not properly handle certain redirections involving data: URLs and Java LiveConnect scripts, which allows remote attackers to start processes, read arbitrary local files, and establish network connections via vectors involving a refresh value in the http-equiv attribute of a META element, which causes the wrong security principal to be used.
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 | 1.9.0.19-7 | DSA-2132-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 3.6.13-2.el6_0 | RHSA-2010:0966 |
| RHEL 6 | xulrunner +1 | 1.9.2.13-3.el6_0 | RHSA-2010:0966 |
| RHEL 5 | firefox | 3.6.13-2.el5 | RHSA-2010:0966 |
| RHEL 5 | xulrunner +1 | 1.9.2.13-3.el5 | RHSA-2010:0966 |
| RHEL 4 | firefox | 3.6.13-3.el4 | RHSA-2010:0966 |
| RHEL 4 | seamonkey +5 | 1.0.9-66.el4_8 | RHSA-2010:0967 |
Advisories 3
- RHSA-2010:0967 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0966 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2132-1 xulrunner - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=589041
- SUSE-SA:2011:003 vendor-advisory
- FEDORA-2010-18775 vendor-advisory
- MDVSA-2010:251 vendor-advisory
- http://support.avaya.com/css/P8/documents/100124650
- RHSA-2010:0966 vendor-advisory
- USN-1019-1 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=610525
- 42818 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=611897
- DSA-2132 vendor-advisory
- 1024848 vdb-entry
- FEDORA-2010-18920 vendor-advisory
- ADV-2011-0030 vdb-entry
- RHSA-2010:0967 vendor-advisory
- FEDORA-2010-18890 vendor-advisory
- oval:org.mitre.oval:def:11666 vdb-entry signature
- 42716 third-party-advisory
- FEDORA-2010-18773 vendor-advisory
- 45355 vdb-entry
- http://www.mozilla.org/security/announce/2010/mfsa2010-79.html