Description
Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain sensitive information by making XMLHttpRequest calls through a proxy and reading the error messages.
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 | 2.0.11-10 | DSA-2402-1 |
| Debian 6.0 | icedove | 3.0.11-1+squeeze7 | DSA-2406-1 |
| Debian 6.0 | iceweasel | 3.5.16-12 | DSA-2400-1 |
| Debian 5.0 | xulrunner | 1.9.0.19-16 | DSA-2400-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 3.6.26-1.el6_2 | RHSA-2012:0079 |
| RHEL 6 | thunderbird | 3.1.18-1.el6_2 | RHSA-2012:0080 |
| RHEL 6 | xulrunner +1 | 1.9.2.26-1.el6_2 | RHSA-2012:0079 |
| RHEL 5 | firefox | 3.6.26-1.el5_7 | RHSA-2012:0079 |
| RHEL 5 | thunderbird | 2.0.0.24-28.el5_7 | RHSA-2012:0085 |
| RHEL 5 | xulrunner +1 | 1.9.2.26-1.el5_7 | RHSA-2012:0079 |
| RHEL 4 | firefox | 3.6.26-2.el4 | RHSA-2012:0079 |
| RHEL 4 | seamonkey +5 | 1.0.9-78.el4 | RHSA-2012:0084 |
| RHEL 4 | thunderbird | 1.5.0.12-46.el4 | RHSA-2012:0085 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 2.0.0.24-28.el5_7 | RHSA-2012:0085 |
Advisories 7
- RHSA-2012:0085 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0084 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0079 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0080 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2400-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2402-1 iceape - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2406-1 icedove - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=504014
- DSA-2402 vendor-advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-02.html
- DSA-2400 vendor-advisory
- SUSE-SU-2012:0198 vendor-advisory
- MDVSA-2012:013 vendor-advisory
- DSA-2406 vendor-advisory
- SUSE-SU-2012:0221 vendor-advisory
- oval:org.mitre.oval:def:14814 vdb-entry signature
- openSUSE-SU-2012:0234 vendor-advisory