From what I've read, and I've not heard anyone say otherwise, this appears to only effect SQL Server 2014-2017, so not 2012 or prior (and not 2019?). The data engine did change in 2014, so that might be why.
Of course, that doesn't mean to say what I've said is true; it could just be that 2012 won't receive a patch as quickly as it's only in extended support. I would have, however, expected to see statements to say the patch was on it's way; like what happened with spectre and meltdown last year, when 2008(R2)'s patches were some what later but were confirmed they were being worked on.
Excuse my typos and sometimes awful grammar. My fingers work faster than my brain does.