Description
The KDE SSL Wrapper (KSSL) API in KDE SC 4.6.0 through 4.7.1, and possibly earlier versions, does not use a certain font when rendering certificate fields in a security dialog, which allows remote attackers to spoof the common name (CN) of a certificate via rich text.
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 6 | kdelibs +3 | 6:4.3.4-11.el6_1.4 | RHSA-2011:1364 |
| RHEL 6 | kdelibs3 +2 | 3.5.10-24.el6_1.1 | RHSA-2011:1385 |
| RHEL 5 | kdelibs +2 | 6:3.5.4-26.el5_7.1 | RHSA-2011:1385 |
| RHEL 4 | kdelibs +1 | 6:3.3.1-18.el4 | RHSA-2011:1385 |
Advisories 2
- RHSA-2011:1385 Red Hat Security Advisory: kdelibs and kdelibs3 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2011:1364 Red Hat Security Advisory: kdelibs security and enhancement update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- https://bugzilla.redhat.com/show_bug.cgi?id=743054
- RHSA-2011:1385 vendor-advisory
- http://www.kde.org/info/security/advisory-20111003-1.txt
- MDVSA-2011:162 vendor-advisory
- RHSA-2011:1364 vendor-advisory