Description
Mozilla Firefox before 3.0.16 and 3.5.x before 3.5.6, and SeaMonkey before 2.0.1, allows remote attackers to spoof an SSL indicator for an http URL or a file URL by setting document.location to an https URL corresponding to a site that responds with a No Content (aka 204) status code and an empty body.
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 | 1.9.0.16-1 | DSA-1956-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.16-1.el5_4 | RHSA-2009:1674 |
| RHEL 5 | xulrunner +2 | 1.9.0.16-2.el5_4 | RHSA-2009:1674 |
| RHEL 4 | firefox | 3.0.16-4.el4 | RHSA-2009:1674 |
| RHEL 4 | seamonkey +5 | 1.0.9-51.el4_8 | RHSA-2009:1673 |
| RHEL 3 | seamonkey +9 | 1.0.9-0.48.el3 | RHSA-2009:1673 |
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 5
- RHSA-2009:1674 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:1673 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1956-1 xulrunner - several vulnerabilities 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
- 1023343 vdb-entry
- 37704 third-party-advisory
- 37699 third-party-advisory
- oval:org.mitre.oval:def:8379 vdb-entry signature
- 1023342 vdb-entry
- ADV-2009-3547 vdb-entry
- 37703 third-party-advisory
- 37881 third-party-advisory
- FEDORA-2009-13362 vendor-advisory
- 37785 third-party-advisory
- USN-874-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=546722
- 37813 third-party-advisory
- FEDORA-2009-13333 vendor-advisory
- USN-873-1 vendor-advisory
- 37349 vdb-entry
- RHSA-2009:1674 vendor-advisory
- FEDORA-2009-13366 vendor-advisory
- firefox-documentlocation-ssl-spoofing(54806) vdb-entry
- DSA-1956 vendor-advisory
- http://www.mozilla.org/security/announce/2009/mfsa2009-69.html
- 37856 third-party-advisory
- RHSA-2009:1673 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=521461
- SUSE-SA:2009:063 vendor-advisory
- oval:org.mitre.oval:def:9791 vdb-entry signature
- 37367 vdb-entry