Description
The International Domain Name (IDN) support in Konqueror 3.2.1 on KDE 3.2.1 allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.
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 | kdelibs +1 | 6:3.3.1-3.6 | RHSA-2005:325 |
Advisories 1
- RHSA-2005:325 Red Hat Security Advisory: kdelibs security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- http://www.shmoo.com/idn/homograph.txt
- multiple-browsers-idn-spoof(19236) vdb-entry
- 20050206 state of homograph attacks mailing-list
- http://www.kde.org/info/security/advisory-20050316-2.txt
- http://www.shmoo.com/idn
- 20050206 Re: state of homograph attacks mailing-list
- FLSA:178606 vendor-advisory
- MDKSA-2005:058 vendor-advisory
- 14162 third-party-advisory
- RHSA-2005:325 vendor-advisory
- oval:org.mitre.oval:def:10671 vdb-entry signature
- 12461 vdb-entry