#VU96631 Input validation error in AMD products - CVE-2023-20509

Vulnerability identifier: #VU96631

Vulnerability risk: Low

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2023-20509

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
AMD Radeon PRO V520
AMD Radeon PRO V620
AMD Instinct MI200
Radeon RX 6000 Series
Radeon PRO W6000 Series
Radeon RX 7000 Series
Radeon PRO W7000 Series

Software vendor:
AMD

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

The vulnerability exists due to insufficient validation of DRAM addresses in PMFW. A local user can perform a DMA read from an invalid DRAM address to SRAM and escalate privileges on the system.

Install updates from vendor's website.

• https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6005.html