Description
The function allocation code (js_NewFunction in jsfun.c) in Firefox 1.5 allows attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via user-defined methods that trigger garbage collection in a way that operates on freed objects.
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 | 2:1.7.8-1sarge5 | DSA-1046-1 |
| Debian 3.1 | mozilla-thunderbird | 1.0.2-2.sarge1.0.8 | DSA-1051-1 |
Advisories 2
- 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
- 19902 third-party-advisory
- mozilla-javascript-memory-corruption(24430) vdb-entry
- HPSBUX02122 vendor-advisory
- 19941 third-party-advisory
- 21622 third-party-advisory
- 19862 third-party-advisory
- 18704 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2006-205.htm
- DSA-1051 vendor-advisory
- ADV-2006-3749 vdb-entry
- GLSA-200604-18 vendor-advisory
- 16476 vdb-entry
- ADV-2006-0413 vdb-entry
- 1015570 vdb-entry
- 18700 third-party-advisory
- 102550 vendor-advisory
- SSRT061236 vendor-advisory
- 19863 third-party-advisory
- http://www.mozilla.org/security/announce/2006/mfsa2006-01.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=322045
- 228526 vendor-advisory
- ADV-2006-3391 vdb-entry
- oval:org.mitre.oval:def:1494 vdb-entry signature
- 22065 third-party-advisory
- firefox-function-allocation-code-execution(42654) vdb-entry
- DSA-1046 vendor-advisory
- DSA-1044 vendor-advisory