CVE-2024-56161

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

03/02/2025

Last modified:

02/04/2025

Description

Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): None

Base Score 3.x

7.20

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3019.html
http://www.openwall.com/lists/oss-security/2025/02/04/1
http://www.openwall.com/lists/oss-security/2025/03/06/2
https://lists.debian.org/debian-lts-announce/2025/03/msg00024.html
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7033.html