Eclypsium Protection for “Downfall” Vulnerabilities on Intel processors

Overview

Amid several recently disclosed vulnerabilities in hardware/CPUs (including a voltage fault injection against AMD CPUs in Telsa vehicles, Zenbleed, AMD CPU attacks discovered by Tavis Ormandy, also a Google researcher, and Inception, a new attack also targeting AMD CPUs) Google research Daniel Maghimi disclosed vulnerabilities targeting Intel CPUs dubbed Downfall (CVE-2022-40982). Downfall exploits vulnerabilities associated with speculative execution, a technique used to boost performance, however, in some scenarios can be manipulated to access sensitive …

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