CVE Database›CVE-2024-56161

CVE-2024-56161

kernel: hw:amd: Vulnerability in guest VM protected by SEV when loading malicious firmware

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Severity

Important

Red Hat Product Security

7.2

CVSS 3.1

Review impact separately from score.

Published · February 4, 2025

Updated · October 22, 2026

Description

A vulnerability was found in hw AMD processors. This flaw allows an attacker with system administrator privileges to exploit a flaw in the microcode signature verification, enabling the loading of malicious microcode. This issue could compromise the confidentiality and integrity of guest VMs protected by AMD’s Secure Encrypted Virtualization (SEV), undermining its security.

Statement

Red Hat has very limited to no visibility and control over binary blobs provided by third-party vendors. Red Hat relies heavily on the vendors to provide timely updates and information about included changes for this content and in most cases merely acts as a release vehicle between the third-party vendor and Red Hat customers with no possibility of influencing or even documenting the changes. Unless explicitly stated, the level of insight, oversight, and control Red Hat has does not meet the criteria required (in terms of Red Hat ownership of development processes, QA, and documentation) for releasing this content as a RHSA. For more information please contact the binary content vendor.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.2
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

CWE not specified