Seems there's two exploits and AMD isn't completely in the clear either, as the second affects all current chips. Here's a NY Times article that isn't too technical. There's patches coming out already though, and the first exploit seems more likely to affect cloud computing operators, rather than home users. As for re-engineering entire computer chipsets, gulp......!!
https://mobile.nytimes.com/2018/01/0...JhdWSzln?amp=1