Amd Epyc 7003 Firmware vulnerabilities

CVE-2021-26327 [MEDIUM] CWE-20 CVE-2021-26327: Insufficient validation of guest context in the SNP Firmware could lead to a potential loss of guest Insufficient validation of guest context in the SNP Firmware could lead to a potential loss of guest confidentiality.

CVE-2021-26404 [MEDIUM] CWE-20 CVE-2021-26404: Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.

CVE-2021-26343 [MEDIUM] CWE-668 CVE-2021-26343: Insufficient validation in ASP BIOS and DRTM commands may allow malicious supervisor x86 software to Insufficient validation in ASP BIOS and DRTM commands may allow malicious supervisor x86 software to disclose the contents of sensitive memory which may result in information disclosure.

CVE-2021-26336 [MEDIUM] CWE-119 CVE-2021-26336: Insufficient bounds checking in System Management Unit (SMU) may cause invalid memory accesses/updat Insufficient bounds checking in System Management Unit (SMU) may cause invalid memory accesses/updates that could result in SMU hang and subsequent failure to service any further requests from other components.

CVE-2023-20523 [MEDIUM] CWE-367 CVE-2023-20523: TOCTOU in the ASP may allow a physical attacker to write beyond the buffer bounds, potentially leadi TOCTOU in the ASP may allow a physical attacker to write beyond the buffer bounds, potentially leading to a loss of integrity or denial of service.

CVE-2021-26330 [MEDIUM] CWE-122 CVE-2021-26330: AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources.

CVE-2021-26355 [MEDIUM] CWE-693 CVE-2021-26355: Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid mess Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid message port registers that could result in a potential denial-of-service.

CVE-2021-26396 [MEDIUM] CWE-345 CVE-2021-26396: Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest.

CVE-2021-26328 [MEDIUM] CWE-358 CVE-2021-26328: Failure to verify the mode of CPU execution at the time of SNP_INIT may lead to a potential loss of Failure to verify the mode of CPU execution at the time of SNP_INIT may lead to a potential loss of memory integrity for SNP guests.

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-2023-20528 [LOW] CWE-20 CVE-2023-20528: Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory cont Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory contents over the I2C bus potentially leading to a loss of confidentiality.