don't know if your system is used by others, but if it is not, then I would not worry about this issue. the security hole from the article can only be exploited locally, as in sitting at the machine. Unless you are going to be performing DDOS attacks or hacking into your own system, then your safe. If it's your own system, your should already have Admin level access to the OS available to you. the only way for to be vulnerable is if you allow access to your machine to a untrusted remote user using Remote Desktop, Teamviewer or other similar software.