Description
The JSSubScriptLoader in Mozilla Firefox before 3.6.24 and Thunderbird before 3.1.6 does not properly handle XPCNativeWrappers during calls to the loadSubScript method in an add-on, which makes it easier for remote attackers to gain privileges via a crafted web site that leverages certain unwrapping behavior, a related issue to CVE-2011-3004.
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 | 2.0.11-9 | DSA-2342-1 |
| Debian 6.0 | icedove | 3.0.11-1+squeeze6 | DSA-2345-1 |
| Debian 6.0 | iceweasel | 3.5.16-11 | DSA-2341-1 |
| Debian 5.0 | xulrunner | 1.9.0.19-15 | DSA-2341-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 3.6.24-3.el6_1 | RHSA-2011:1437 |
| RHEL 6 | thunderbird | 3.1.16-2.el6_1 | RHSA-2011:1439 |
| RHEL 6 | xulrunner +1 | 1.9.2.24-2.el6_1.1 | RHSA-2011:1437 |
| RHEL 5 | firefox | 3.6.24-3.el5_7 | RHSA-2011:1437 |
| RHEL 5 | xulrunner +1 | 1.9.2.24-2.el5_7 | RHSA-2011:1437 |
| RHEL 4 | firefox | 3.6.24-3.el4 | RHSA-2011:1437 |
Advisories 5
- RHSA-2011:1439 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:1437 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2342-1 iceape - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2341-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2345-1 icedove - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=680880
- RHSA-2011:1439 vendor-advisory
- http://www.mozilla.org/security/announce/2011/mfsa2011-46.html
- SUSE-SU-2011:1256 vendor-advisory
- oval:org.mitre.oval:def:13550 vdb-entry signature