Epyc 9554P Firmware
Monthly
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity. Rated high severity (CVSS 7.9), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data leakage or data corruption. Rated high severity (CVSS 7.9), this vulnerability is low attack complexity. No vendor patch available.
A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information. Rated low severity (CVSS 3.2), this vulnerability is low attack complexity. No vendor patch available.
Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. Rated medium severity (CVSS 4.7). Public exploit code available and no vendor patch available.
A potential power side-channel vulnerability in some AMD processors may allow an authenticated attacker to use the power reporting functionality to monitor a program’s execution inside an AMD SEV VM. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity. Rated high severity (CVSS 7.9), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data leakage or data corruption. Rated high severity (CVSS 7.9), this vulnerability is low attack complexity. No vendor patch available.
A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information. Rated low severity (CVSS 3.2), this vulnerability is low attack complexity. No vendor patch available.
Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. Rated medium severity (CVSS 4.7). Public exploit code available and no vendor patch available.
A potential power side-channel vulnerability in some AMD processors may allow an authenticated attacker to use the power reporting functionality to monitor a program’s execution inside an AMD SEV VM. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.