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The academics call them Meltdown/Spectre, Google calls them Variant 1-3 (each with a CVE), and there's no good matrix of what bug affects what (which CPUs, kernel leaks, same-context leaks, cross-process leaks, etc).
The Spectre paper claims ARM is impacted but gives zero details beyond "initial testing has confirmed that ARM processors are impacted as well". WTF does that even mean? Which processors and which exploit scenario?
Hyperthreading is also very important for these attacks due to sharing execution resources, and yet it isn't being mentioned enough.
Vulnerable ARM cores are listed on https://developer.arm.com/support/security-update … following the Google naming scheme.
Yup, ARM has by far the most comprehensive response so far.
To me it seems kind of on purpose to un-focus Intel and focus on "systemic" which is not.
The broader speculation attacks affect many CPUs. The easiest to exploit, worst attack affects Intel particularly.
There is a table on the arm website
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