Description
Visual truncation vulnerability in Mozilla Firefox before 3.0.14, and 3.5.x before 3.5.3, allows remote attackers to trigger a vertical scroll and spoof URLs via unspecified Unicode characters with a tall line-height property.
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 5.0 | xulrunner | 1.9.0.14-0lenny1 | DSA-1885-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.14-1.el5_4 | RHSA-2009:1430 |
| RHEL 5 | nspr +1 | 4.7.5-1.el5_4 | RHSA-2009:1430 |
| RHEL 5 | xulrunner +2 | 1.9.0.14-1.el5_4 | RHSA-2009:1430 |
| RHEL 4 | firefox | 3.0.14-1.el4 | RHSA-2009:1430 |
| RHEL 4 | nspr +1 | 4.7.5-1.el4_8 | RHSA-2009:1430 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 4
- RHSA-2009:1430 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1885-1 xulrunner - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- DSA-1885 vendor-advisory
- 36343 vdb-entry
- SUSE-SA:2009:048 vendor-advisory
- RHSA-2009:1430 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=453827
- oval:org.mitre.oval:def:5418 vdb-entry signature
- 36692 third-party-advisory
- 36670 third-party-advisory
- 36671 third-party-advisory
- http://www.mozilla.org/security/announce/2009/mfsa2009-50.html
- oval:org.mitre.oval:def:10871 vdb-entry signature
- 37098 third-party-advisory
- 1022875 vdb-entry