Swiss researchers have found holes in AMD Ryzen processor security. AMD has outlined the newly uncovered "Inception" attack in its official CVE-2023-20569 bulletin. Like some of the most infamous CPU vulnerabilities, Inception is a speculative side channel attack, which can possibly lead to privileged data leakage to unprivileged processes. At the time of writing AMD is not aware of any Inception exploits outside of security research circles.
Unfortunately for AMD and its users, Inception affects the latest AMD Ryzen processor families based on Zen 3 and Zen 4 cores — across data center, desktop, HEDT, and mobile. However, we must be thankful that, as details of Inception go live, mitigations are in the pipeline.
