PT-2025-3198 · Amd+4 · Amd Cpus+4

Tavis Ormandy · Published 2024-10-25 · Updated 2025-09-03 · CVE-2024-56161

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions AMD CPU versions (affected versions not specified)

Description The issue is related to improper signature verification in the AMD CPU ROM microcode patch loader, which may allow an attacker with local administrator privilege to load malicious CPU microcode. This could result in the loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP. The vulnerability exploits the use of an insecure hash function for microcode updates, potentially compromising secure computing environments.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

BDU:2025-02682

CVE-2024-56161

DLA-4098-1

MGASA-2025-0124

OESA-2025-1307

USN-7560-1

USN-7561-1

Affected Products

Amd Cpus

Astra Linux

Debian

Linuxmint

Ubuntu

References · 79

• https://osv.dev/vulnerability/CVE-2024-56161 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7560-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4098-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7561-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0811SE18 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-31356 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56161 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-56161 · Security Note
• https://bdu.fstec.ru/vul/2025-02682 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2024-56161 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-56161 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-56161 · Security Note
• https://osv.dev/vulnerability/MGASA-2025-0124 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7560-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2025-0124.html · Security Note