This vulnerability is quite annoying if you’re locking your desktop in work or anywhere else.
In short, one is able to kill xorg’s xscreensaver’s lock by just pressing alt-ctrl-* or alt-ctrl-/ (both * and / need to be from the keypad).
A workaround that was posted suggests to modify files in the system. If you don’t want to (like me – for various reasons) then you can do this on-the-fly.
Put the following script in a file and make it run whenever you log in to your X session (e.g. by putting it in ~/.kde/Autostart/ if you’re using KDE):
#!/bin/bash
xkbcomp :0 - > /tmp/xkbcomp
cat /tmp/xkbcomp
| sed -n '/key <KPMU> {/,/^ *}/ !p'
| sed -n '/key <KPDV> {/,/^ *}/ !p'
> /tmp/xkbcomp.new
xkbcomp /tmp/xkbcomp.new :0
On each login, this will get rid of the offending xkb entries.
V13 