Re: Uh Oh - NEW Data Leak Found in Intel Processors

c186282 <c186282@nnada.net> wrote:

https://scitechdaily.com/intels-memory-leak-nightmare-5000-bytes-per-second-in-the-hands-of-hackers/
The flaw allows attackers to break down barriers between
users sharing the same processor, potentially accessing
private data stored in memory.

This is only really relevant for the cloud providers, where multiple
tenants run code concurrently on the same CPU. It is totally
irrelevant for home users, and only partially relevant for on-prem
virtualizsation ("private cloud").

  Sounds too complex for broad use on 'home' systems
  but becomes more of an issue if you're "important",
  big biz, bank, defense. Orgs that save money by using
  very 'thin' clients, where most of the work is done
  by a single kick-ass box, may risk rather broad
  exposure to this new hacking approach. Hmmm ...
  Office365-online kinda does this ....

If you put your private data on the public cloud, your data is at
risk. But it has been like that for years, and noone cares.

  Alas, speculative execution is one of the things
  that put a lot more pop into modern CPUs. Turn
  if off and you step back YEARS performance-wise.

Yes. Most mitigations for this type of issue (it's not the first one)
costs performance.

Greetings
Marc
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