Description
Heap-based buffer overflow in the UTF8ToNewUnicode function for Firefox before 1.0.1 and Mozilla before 1.7.6 might allow remote attackers to cause a denial of service (crash) or execute arbitrary code via invalid sequences in a UTF8 encoded string that result in a zero length value.
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 4 | firefox | 1.0.1-1.4.3 | RHSA-2005:176 |
Advisories 1
- RHSA-2005:176 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 12659 vdb-entry
- 19823 third-party-advisory
- http://www.mozilla.org/security/announce/mfsa2005-15.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=241440
- oval:org.mitre.oval:def:100043 vdb-entry signature
- RHSA-2005:176 vendor-advisory
- GLSA-200503-30 vendor-advisory
- GLSA-200503-10 vendor-advisory
- SUSE-SA:2006:022 vendor-advisory
- oval:org.mitre.oval:def:10606 vdb-entry signature