Stack-based buffer overflow in AMD products - CVE-2023-20520

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Main Vulnerability Database Vulnerabilities #VU75992

Stack-based buffer overflow in AMD products - CVE-2023-20520

Published: May 10, 2023


Vulnerability identifier: #VU75992
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-20520
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: AMD
Affected software:
1st Gen AMD EPYC Processors
2nd Gen AMD EPYC Processors
3rd Gen AMD EPYC Processors

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in ASP Bootloader. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.


How to mitigate CVE-2023-20520

Install updates from vendor's website.

Sources