CVE-2023-20519

Published: Nov 14, 2023Modified: Jun 17, 2026

3.3

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitability: 1.8 / Impact: 1.4

Source: NVD

Description

A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest integrity.

Affected (2)

Products: Amd: Milanpi Firmware, Genoapi Firmware

Amd

2 products

Milanpi Firmware

Genoapi Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Amd Milanpi Firmware	Before 1.0.0.a

Running on/with	Platform Versions
Amd Milanpi	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Amd Genoapi Firmware	Before 1.0.0.3

Running on/with	Platform Versions
Amd Genoapi	All versions

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002

Source: psirt@amd.com

Vendor Advisory

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.