… are used by distro update mechanisms and very few people turn those off, even if they don’t use elevated privileges for anything else.
Admittedly, it’s unlikely that a distro’s repository will end up with a compromised microcode package, but it’s not impossible (Remember the 7zip debacle?). And if it happens, you can be sure that whoever designs the payload will use the temporary access to install something ugly that has more permanent access.
But as you say, AMD have issued a fix. And that’d be why.
… are used by distro update mechanisms and very few people turn those off, even if they don’t use elevated privileges for anything else.
Admittedly, it’s unlikely that a distro’s repository will end up with a compromised microcode package, but it’s not impossible (Remember the 7zip debacle?). And if it happens, you can be sure that whoever designs the payload will use the temporary access to install something ugly that has more permanent access.
But as you say, AMD have issued a fix. And that’d be why.
7z? You mean xz??
Whoops. It looks like I conflated it with the more recent 7zip vulnerability, which didn’t affect Linux much at all.
Just goes to show how often these things crop up though.