Incomplete cleanup in 4th Gen AMD EPYC Processors - CVE-2021-46766
Published: December 8, 2023
Vulnerability identifier: #VU84023
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-46766
CWE-ID: CWE-459
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: AMD
Affected software:
4th Gen AMD EPYC Processors
4th Gen AMD EPYC Processors
Detailed vulnerability description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to incomplete clearing of sensitive data in the ASP Bootloader. A local user with access to ASP SRAM can gain access to sensitive information.
How to mitigate CVE-2021-46766
Install updates from vendor's website.