AMD's Zen 3 CPUs Are Susceptible to Spectre-Like Vulnerability

Re:AMD's Zen 3 CPUs Are Susceptible to Spectre-Like Vulnerab... by throw0101a on Sunday April 04, 2021 @10:39AM (#26689760)

Everything is susceptible to backdoors depending on your level of paranoia. You can have an open source architecture, like RISC-V, and yet the people at the fab can insert backdoors into the silicon. Building trusted hardware is an area of active research:

* https://spectrum.ieee.org/semiconductors/design/stopping-har...

Then you have to worry about trusting software. Even if you compile it from scratch, the compiler itself can be a threat (as outlined by Thompson1984):

* https://www.schneier.com/blog/archives/2006/01/countering_tr...

* PDF: https://www.cs.cmu.edu/~rdriley/487/papers/Thompson_1984_Ref...

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Re:AMD's Zen 3 CPUs Are Susceptible to Spectre-Like Vulnerab... by BlueTemplar on Sunday April 04, 2021 @11:00AM (#26689963)

Of course. To be more specific, I'm concerned about widespread compromise by NSA of computers in European companies with the goal of industrial espionage. (Like the way that Intel's Management Engine can potentially be this kind of threat.)

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Re:AMD's Zen 3 CPUs Are Susceptible to Spectre-Like Vulnerab... by opencl on Sunday April 04, 2021 @12:12PM (#26690644)

If you're concerned about Intel's ME, AMD's PSP is basically the same thing.

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