An integer overflow flaw was found in the way Qt handled pixmap images. The KDE khtml library uses Qt in such a way that untrusted parameters could be passed to Qt, triggering the overflow. An attacker could for example create a malicious web page that when viewed by a victim in the Konqueror browser would cause Konqueror to crash or possibly execute arbitrary code with the privileges of the victim. (CVE-2006-4811) See RH announcement: http://rhn.redhat.com/errata/RHSA-2006-0720.html patches for qt are being handled in bug #214393