Improper Initialization in 3rd Gen AMD EPYC Processors and 4th Gen AMD EPYC Processors - CVE-2023-31346
Published: July 25, 2024
Vulnerability identifier: #VU94741
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-2023-31346
CWE-ID: CWE-665
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: AMD
Affected software:
3rd Gen AMD EPYC Processors
4th Gen AMD EPYC Processors
3rd 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 improper initialization in SEV Firmware. A local user can run a specially crafted application to access stale data from other guests.
How to mitigate CVE-2023-31346
Install updates from vendor's website.