Tavis Ormandy, a researcher with Google Information Security, posted today about a new vulnerability he independently found in AMD’s Zen 2 processors. The ‘Zenbleed’ vulnerability spans the entire Zen 2 product stack, including AMD’s EPYC data center processors and the Ryzen 3000/4000/5000 CPUs, allowing the theft of protected information from the CPU, such as encryption keys and user logins. The attack does not require physical access to the computer or server and can even be executed via javascript on a webpage.
