Secunia Security Advisory – Red Hat has issued an update for kdebase. This fixes a security issue, which may lead to malicious people with physical access to a system to access to a user’s desktop session.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/48597/sa21203.txt
Source: https://packetstormsecurity.com/files/48597/Secunia-Security-Advisory-21203.html