TL;DR there was a backdoor found in the XZ program. All major distros have been updated but it is recommended that you do a fresh install on systems that are exposed to the internet and that had the bad version of the program. Only upstream distros were affected.
Hmmm. Are you white?
This is what I look like:
If I pray to you will I be able to get my printer to work?
There are some things that not even a god has the power to do.
Made out of Empty cups