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“Downfall” bug affects years of Intel CPUs, can leak encryption keys & more

#Downfall, aka CVE-2022-40982, is similar to prior speculative execution attacks.

All CPUs based on the Skylake, Kaby Lake, Whiskey Lake, Ice Lake, Comet Lake, Coffee Lake, Rocket Lake, and Tiger Lake architectures (6th-11th gen Core) are affected, along with a few others.

For systems that use Intel's SGX feature, a firmware fix is needed; otherwise, the fix can be loaded by the OS.

https://arstechnica.com/information-technology/2023/08/data-leaking-downfall-bug-affects-six-generations-of-intel-pc-and-server-cpus/