Description
The Javascript interpreter (jsinterp.c) in Mozilla and Firefox before 1.5.1 does not properly dereference objects, which allows remote attackers to cause a denial of service (crash) or execute arbitrary code via unknown attack vectors related to garbage collection.
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 14 | thunderbird | 1.5.0.2-1 | — |
| Debian 13 | thunderbird | 1.5.0.2-1 | — |
| Debian 12 | thunderbird | 1.5.0.2-1 | — |
| Debian 3.1 | mozilla | 2:1.7.8-1sarge5 | DSA-1046-1 |
| Debian 3.1 | mozilla-firefox | 1.0.4-2sarge6 | DSA-1044-1 |
| Debian 3.1 | mozilla-thunderbird | 1.0.2-2.sarge1.0.8 | DSA-1051-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | firefox | 1.0.7-1.4.3 | RHSA-2006:0200 |
| RHEL 4 | thunderbird | 1.0.8-1.4.1 | RHSA-2006:0330 |
Advisories 5
- RHSA-2006:0330 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2006:0200 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1044-1 mozilla-firefox - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1046-1 mozilla - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1051-1 mozilla-thunderbird - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- MDKSA-2006:036 vendor-advisory
- USN-275-1 vendor-advisory
- RHSA-2006:0330 vendor-advisory
- 19902 third-party-advisory
- mozilla-javascript-memory-corruption(24430) vdb-entry
- MDKSA-2006:037 vendor-advisory
- USN-276-1 vendor-advisory
- HPSBUX02122 vendor-advisory
- 19941 third-party-advisory
- 19780 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=316885
- 19821 third-party-advisory
- oval:org.mitre.oval:def:10016 vdb-entry signature
- FEDORA-2006-075 vendor-advisory
- GLSA-200604-12 vendor-advisory
- 21622 third-party-advisory
- 19862 third-party-advisory
- 19230 third-party-advisory
- 18704 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2006-205.htm
- 19823 third-party-advisory
- DSA-1051 vendor-advisory
- 18709 third-party-advisory
- ADV-2006-3749 vdb-entry
- USN-271-1 vendor-advisory
- 18705 third-party-advisory
- GLSA-200604-18 vendor-advisory
- 16476 vdb-entry
- ADV-2006-0413 vdb-entry
- 1015570 vdb-entry
- 19746 third-party-advisory
- 21033 third-party-advisory
- 18700 third-party-advisory
- 102550 vendor-advisory
- 19759 third-party-advisory
- SSRT061236 vendor-advisory
- RHSA-2006:0200 vendor-advisory
- oval:org.mitre.oval:def:670 vdb-entry signature
- 18706 third-party-advisory
- FEDORA-2006-076 vendor-advisory
- MDKSA-2006:078 vendor-advisory
- RHSA-2006:0199 vendor-advisory
- 20051 third-party-advisory
- 19863 third-party-advisory
- FLSA-2006:180036-2 vendor-advisory
- http://www.mozilla.org/security/announce/2006/mfsa2006-01.html
- 18708 third-party-advisory
- FLSA:180036-1 vendor-advisory
- 228526 vendor-advisory
- 19852 third-party-advisory
- SUSE-SA:2006:022 vendor-advisory
- GLSA-200605-09 vendor-advisory
- ADV-2006-3391 vdb-entry
- 18703 third-party-advisory
- 22065 third-party-advisory
- 19950 third-party-advisory
- DSA-1046 vendor-advisory
- DSA-1044 vendor-advisory