Improper restriction of software interfaces to hardware features in AMD CPU Firmware - CVE-2023-20583
Published: August 2, 2023
Vulnerability identifier: #VU78861
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-20583
CWE-ID: CWE-1256
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to the way data in a cache line changes over time. A local user can monitor the CPU power consumption and potentially gain access to sensitive information using software-based power side channels.
Affected software
AMD CPU Firmware
How to mitigate CVE-2023-20583
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.