Description
content/html/document/src/nsHTMLDocument.cpp in Mozilla Firefox 3.0.x before 3.0.15 and 3.5.x before 3.5.4 allows user-assisted remote attackers to bypass the Same Origin Policy and read an arbitrary content selection via the document.getSelection function.
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 | 1.9.0.15-0lenny1 | DSA-1922-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.15-3.el5_4 | RHSA-2009:1530 |
| RHEL 5 | nspr +1 | 4.7.6-1.el5_4 | RHSA-2009:1530 |
| RHEL 5 | xulrunner +2 | 1.9.0.15-3.el5_4 | RHSA-2009:1530 |
| RHEL 4 | firefox | 3.0.15-3.el4 | RHSA-2009:1530 |
| RHEL 4 | nspr +1 | 4.7.6-1.el4_8 | RHSA-2009:1530 |
| RHEL 4 | seamonkey +5 | 1.0.9-50.el4_8 | RHSA-2009:1531 |
| RHEL 3 | seamonkey +9 | 1.0.9-0.47.el3 | RHSA-2009:1531 |
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 5
- RHSA-2009:1530 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:1531 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1922-1 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
- oval:org.mitre.oval:def:10440 vdb-entry signature
- 272909 vendor-advisory
- oval:org.mitre.oval:def:5935 vdb-entry signature
- https://bugzilla.mozilla.org/show_bug.cgi?id=503226
- ADV-2009-3334 vdb-entry
- http://www.mozilla.org/security/announce/2009/mfsa2009-61.html
- MDVSA-2009:294 vendor-advisory