@BM - not quite as clear as it seems - beware of mainstream media.
This exploit affects "hidden" servers. These are servers which are not connected to the mainstream internet but are 'hidden' as a service in Tor. Their URLs look something like this
Http://a812jaxsdj12931^%.onion
A TOR browser will intercept this and deliver it to the hidden server. The news essentially relates to kiddie-porn sites so good luck if they get arrested.
The bug is essentially a Javascript exploit in the Windoze version of TOR Browser
which has already been fixed. It doesn't apply to the Mac or Linux versions.
It also doesn't apply when you use TOR Browser to visit regular prepper/survivalist websites
There are workarounds but if you are seriously worried or your paranoia levels are high, then use an Internet Cafe, or take your laptop into a MaccyD's or Coffee House where they have free wifi.