Originally posted by binarybanana
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Hertzbleed Disclosed As New Family Of Side-Channel Attacks Affecting Intel + AMD
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Originally posted by Termy View PostThis should mainly affect servers with VMs again, right?
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I have serious doubts as to the actual practical exploitability of this. Also, on VMs this should be less of an issue, not more, as is being suggested above me? On VMs there is less correlation between power usages and the happenings inside the specific VM, since whatever is hosting the VM is presumably doing lots of other things too.
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Originally posted by mlau View PostI can certainly see a patient attacker using this to exfiltrate seldom-changed keys.
Similarly, while most encryption methods will let you rewrap a key with a new passphrase, the key itself remains constant, for obvious reasons.
Luckily, this does seem very much like a purely-academic "threat" right now, and unlikely to be advanceable into something practical, but we'll have to see how things go.
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