CVE-2024-56161

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.