Amd 3Rd Gen Amd Epyc Processors vulnerabilities

CVE-2023-20521 [MEDIUM] CWE-367 CVE-2023-20521: TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM recor TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.

CVE-2021-26345 [MEDIUM] CWE-125 CVE-2021-26345: Failure to validate the value in APCB may allow a privileged attacker to tamper with the APCB token Failure to validate the value in APCB may allow a privileged attacker to tamper with the APCB token to force an out-of-bounds memory read potentially resulting in a denial of service.

CVE-2023-20526 [MEDIUM] CVE-2023-20526: Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical a Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality.

CVE-2023-20594 [MEDIUM] CWE-824 CVE-2023-20594: Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access.

CVE-2023-20519 [LOW] CWE-416 CVE-2023-20519: A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest integrity.

CVE-2023-20573 [LOW] CWE-693 CVE-2023-20573: A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulti A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information.