CVE-2023-31315

Published: Aug 12, 2024Modified: Jun 17, 2026Deferred

7.5

Vector

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

Exploitability: 0.8 / Impact: 6.0

Source: psirt@amd.com (Secondary)

Description

Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.

Related CWEs

CWE-94

Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

References (4)

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7014.html

Source: psirt@amd.com

https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Enrique%20Nissim%20Krzysztof%20Okupski%20-%20AMD%20Sinkclose%20Universal%20Ring-2%20Privilege%20Escalation.pdf

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

https://news.ycombinator.com/item?id=41475975

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

https://www.darkreading.com/remote-workforce/amd-issues-updates-for-silicon-level-sinkclose-flaw

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

Timeline

No history available yet.