amd64-microcode: Improper signature verification in AMD CPU ROM microcode patch loader mayallow an attacker with local administrator p...
CVE-2024-56161 is fixed in amd64-microcode on 1 platform, first by amd64-microcode 3.20250311.1ubuntu0.24.04.1, released February 3, 2025. It is not reported as exploited. Patch Radar priority: High.
Improper signature verification in AMD CPU ROM microcode patch loader mayallow an attacker with local administrator privilege to load malicious CPUmicrocode resulting in loss of confidentiality and integrity of aconfidential guest running under AMD SEV-SNP.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| amd64-microcode · Debian 11.6 (bullseye) | 3.20250311.1~deb11u1 | DLA-4098-1 | Mar 31, 2025 |
| amd64-microcode · Debian 12.15 (bookworm) | 3.20250311.1~deb12u1 | DEBIAN-CVE-2024-56161 | Feb 3, 2025 |
| amd64-microcode · Debian 13.5 (trixie) | 3.20250311.1 | DEBIAN-CVE-2024-56161 | Feb 3, 2025 |
| amd64-microcode · Debian 14 | 3.20250311.1 | DEBIAN-CVE-2024-56161 | Feb 3, 2025 |
| amd64-microcode · Ubuntu 24.04.5 LTS (noble) | 3.20250311.1ubuntu0.24.04.1 | amd64-microcode 3.20250311.1ubuntu0.24.04.1 | Feb 3, 2025 |
| amd64-microcode · Ubuntu 24.10 (oracular) | 3.20250311.1ubuntu0.24.10.1 | amd64-microcode 3.20250311.1ubuntu0.24.10.1 | Jan 16, 2026 |
| amd64-microcode · Ubuntu 25.04 (plucky) | 3.20250311.1ubuntu0.25.04.1 | amd64-microcode 3.20250311.1ubuntu0.25.04.1 | Jan 16, 2026 |
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