VU#180049: CPU hardware utilizing speculative execution may be vulnerable to cache side-channel attacks

Vulnerability Note VU#180049 CPU hardware utilizing speculative execution may be vulnerable to cache side-channel attacks Original Release date: 21 May 2018 | Last revised: 21 May 2018 Overview CPU hardware utilizing speculative execution may be vulnerable to cache timing side-channel analysis. Two vulnerabilities are identified, known as "Variant 3a" and "Variant 4". Description Speculative execution is a technique used by many modern processors to improve performance by predicting which instructions may be executed based on past execution history. An attacker...