CVE-2024-56161

Publication date 3 February 2025

Last updated 2 April 2025

Ubuntu priority

Medium

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
amd64-microcode 24.10 oracular
Needs evaluation
24.04 LTS noble
Needs evaluation
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

rodrigo-zaiden

This CVE tracks the AMD SEV-SNP firmware that exists in amd64-microcode package. CVE-2024-36347 is somewhat related to this CVE, but tracks the changes applied to the Linux kernel AMD SEV firmware were included in noble onwards, based on upstream release 20220411, releases older than that are not supported.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
amd64-microcode