Description
Mozilla Firefox before 3.0.6 and SeaMonkey do not block links to the (1) about:plugins and (2) about:config URIs from .desktop files, which allows user-assisted remote attackers to bypass the Same Origin Policy and execute arbitrary code with chrome privileges via vectors involving the URL field in a Desktop Entry section of a .desktop file, related to representation of about: URIs as jar:file:// URIs. NOTE: this issue exists because of an incomplete fix for CVE-2008-4582.
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 5 | firefox | 3.0.6-1.el5 | RHSA-2009:0256 |
| RHEL 5 | nss +3 | 3.12.2.0-4.el5 | RHSA-2009:0256 |
| RHEL 5 | xulrunner +2 | 1.9.0.6-1.el5 | RHSA-2009:0256 |
| RHEL 4 | firefox | 3.0.6-1.el4 | RHSA-2009:0256 |
| RHEL 4 | nss +2 | 3.12.2.0-3.el4 | RHSA-2009:0256 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 92.0-1.2 | openSUSE-SU-2024:10600-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 3
- RHSA-2009:0256 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- openSUSE-SU-2024:10600-1 MozillaFirefox-92.0-1.2 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
References
- ADV-2009-0313 vdb-entry
- http://www.mozilla.org/security/announce/2009/mfsa2009-04.html
- SUSE-SA:2009:009 vendor-advisory
- 33809 third-party-advisory
- oval:org.mitre.oval:def:9922 vdb-entry signature
- MDVSA-2009:044 vendor-advisory
- RHSA-2009:0256 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=460425
- http://support.avaya.com/elmodocs2/security/ASA-2009-040.htm
- 1021666 vdb-entry
- 33831 third-party-advisory
- 33841 third-party-advisory
- 33846 third-party-advisory
- 33799 third-party-advisory
- 33598 vdb-entry
- FEDORA-2009-1399 vendor-advisory