#VU78861 Improper restriction of software interfaces to hardware features in AMD CPU Firmware - CVE-2023-20583

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Main Vulnerability Database Vulnerabilities #VU78861

#VU78861 Improper restriction of software interfaces to hardware features in AMD CPU Firmware - CVE-2023-20583

Published: August 2, 2023


Vulnerability identifier: #VU78861
Vulnerability risk: Low
CVSSv4.0: 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/E:U/U:Clear
CVE-ID: CVE-2023-20583
CWE-ID: CWE-1256
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
AMD CPU Firmware
Software vendor:
AMD

Description

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.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links