Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: AMD

Published: 2022-08-09T20:20:12.911867Z

Updated: 2024-09-17T00:36:13.880Z

Reserved: 2022-03-31T00:00:00

Link: CVE-2021-46778

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2022-08-10T20:15:24.717

Modified: 2022-08-19T13:59:16.897

Link: CVE-2021-46778

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-08-09T06:30:00Z

Links: CVE-2021-46778 - Bugzilla