#VU75920 Input validation error in 2nd Gen AMD EPYC Processors and 3rd Gen AMD EPYC Processors - CVE-2021-46769
Published: May 9, 2023
Vulnerability identifier: #VU75920
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-46769
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
2nd Gen AMD EPYC Processors
3rd Gen AMD EPYC Processors
2nd Gen AMD EPYC Processors
3rd Gen AMD EPYC Processors
Software vendor:
AMD
AMD
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insufficient syscall validation in the ASP Bootloader. A local privileged user can execute arbitrary DMA copies and escalate privileges on the system.
Remediation
Install updates from vendor's website.