Description
Firefox before 1.0.4 and Mozilla Suite before 1.7.8 do not properly limit privileges of Javascript eval and Script objects in the calling context, which allows remote attackers to conduct unauthorized activities via "non-DOM property overrides," a variant of CVE-2005-1160.
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 3.1 | mozilla-thunderbird | 1.0.2-2.sarge1.0.6 | DSA-781-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | devhelp +1 | 0.9.2-2.4.5 | RHSA-2005:435 |
| RHEL 4 | firefox | 1.0.4-1.4.1 | RHSA-2005:434 |
| RHEL 4 | thunderbird | 1.0.6-1.4.1 | RHSA-2005:601 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Mozilla Suite And Firefox - DOM Property Overrides Code Execution EDB-25670 · remote · May 16, 2005 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 4
- RHSA-2005:601 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2005:434 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2005:435 Red Hat Security Advisory: mozilla security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-781-1 mozilla-thunderbird - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://www.mozilla.org/security/announce/mfsa2005-44.html
- RHSA-2005:435 vendor-advisory
- 19823 third-party-advisory
- 1013964 vdb-entry
- 15495 vdb-entry
- oval:org.mitre.oval:def:100014 vdb-entry signature
- RHSA-2005:601 vendor-advisory
- 1013965 vdb-entry
- 13645 vdb-entry
- oval:org.mitre.oval:def:10791 vdb-entry signature
- ADV-2005-0530 vdb-entry
- SUSE-SA:2006:022 vendor-advisory
- RHSA-2005:434 vendor-advisory