Description
The web browser plug-in in IcedTea-Web 1.0.x before 1.0.6 and 1.1.x before 1.1.4 allows remote attackers to bypass the Same Origin Policy (SOP) and execute arbitrary script or establish network connections to unintended hosts via an applet whose origin has the same second-level domain, but a different sub-domain than the targeted domain.
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 14 | icedtea-web | 1.1.4-1 | — |
| Debian 13 | icedtea-web | 1.1.4-1 | — |
| Debian 12 | icedtea-web | 1.1.4-1 | — |
| Debian 6.0 | openjdk-6 | 6b18-1.8.13-0+squeeze1 | DSA-2420-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | icedtea-web +1 | 1.0.6-1.el6_1 | RHSA-2011:1441 |
Advisories 2
- RHSA-2011:1441 Red Hat Security Advisory: icedtea-web security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2420-1 openjdk-6 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugzilla.redhat.com/show_bug.cgi?id=742515
- RHSA-2011:1441 vendor-advisory
- http://dbhole.wordpress.com/2011/11/08/icedtea-web-1-0-6-and-1-1-4-security-releases-released/
- 76940 vdb-entry
- openSUSE-SU-2012:0371 vendor-advisory
- DSA-2420 vendor-advisory
- 50610 vdb-entry
- USN-1263-1 vendor-advisory