Description
Mozilla Firefox before 3.5.19 and 3.6.x before 3.6.17, and SeaMonkey before 2.0.14, does not properly implement autocompletion for forms, which allows remote attackers to read form history entries via a Java applet that spoofs interaction with the autocomplete controls.
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 6.0 | iceape | 2.0.11-5 | DSA-2227-1 |
| Debian 6.0 | icedove | 3.0.11-1+squeeze2 | DSA-2235-1 |
| Debian 6.0 | iceweasel | 3.5.16-7 | DSA-2228-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 3.6.17-1.el6_0 | RHSA-2011:0471 |
| RHEL 6 | xulrunner +1 | 1.9.2.17-4.el6_0 | RHSA-2011:0471 |
| RHEL 5 | firefox | 3.6.17-1.el5_6 | RHSA-2011:0471 |
| RHEL 5 | xulrunner +1 | 1.9.2.17-3.el5_6 | RHSA-2011:0471 |
| RHEL 4 | firefox | 3.6.17-2.el4 | RHSA-2011:0471 |
Advisories 4
- RHSA-2011:0471 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2227-1 iceape - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2228-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2235-1 icedove - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-2228 vendor-advisory
- MDVSA-2011:079 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=527935
- http://www.mozilla.org/security/announce/2011/mfsa2011-14.html
- DSA-2235 vendor-advisory
- oval:org.mitre.oval:def:14523 vdb-entry signature
- DSA-2227 vendor-advisory
- http://downloads.avaya.com/css/P8/documents/100144158