AMD 3rd Gen AMD EPYC™ Processors

• CVE-2023-20577 High 7.4 A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution. 0.2%
• CVE-2023-31315 High 7.5 Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code ex 0.6%
• CVE-2024-21980 High 7.9 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. 0.4%
• CVE-2024-21978 Medium 6.0 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. 0.5%
• CVE-2023-31355 Medium 6.0 Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest. 0.4%
• CVE-2022-23829 High 8.2 A potential weakness in AMD SPI protection features may allow a malicious attacker with Ring0 (kernel mode) access to bypass the native System Management Mode (SMM) ROM protections. 0.2%
• CVE-2023-20587 High 7.1 Improper Access Control in System Management Mode (SMM) may allow an attacker access to the SPI flash potentially leading to arbitrary code execution. 0.2%
• CVE-2023-31347 Medium 4.9 Due to a code bug in Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of gues 0.5%
• CVE-2023-31346 Medium 6.0 Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests. 0.3%
• CVE-2023-20573 Low 3.2 Debug Exception Delivery in Secure Nested Paging 0.3%
• CVE-2023-20592 Unrated Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential lo 1.0%
• CVE-2023-20566 Medium 5.3 Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity. 0.4%
• CVE-2023-20519 Unrated 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 integ 0.2%
• CVE-2022-23830 Low 1.9 SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity. 0.3%
• CVE-2021-26345 Low 1.9 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. 0.4%
• CVE-2023-20533 Medium 6.1 Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service. 0.5%
• CVE-2023-20526 Low 1.9 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. 0.3%
• CVE-2023-20521 Low 3.3 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 0.3%
• CVE-2022-23820 High 7.5 Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execution. 0.7%
• CVE-2021-46774 Medium 6.7 Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service. 0.5%
• CVE-2023-20594 Unrated Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access. 0.2%
• CVE-2023-20569 Unrated A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, po 7.3%
• CVE-2023-20575 Medium 6.5 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 0.8%
• CVE-2021-46756 Critical 9.1 Insufficient validation of inputs in SVC_MAP_USER_STACK in the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious Uapp or ABL to send malformed or invalid syscall to the boot 0.6%
• CVE-2021-26371 Medium 5.5 A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in exposure of ASP memory to userspace, potentially leading to information disclosure. 0.2%
• CVE-2021-26356 High 7.4 A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and information disclosure. 0.4%
• CVE-2021-26354 Medium 5.5 Insufficient bounds checking in ASP may allow an attacker to issue a system call from a compromised ABL which may cause arbitrary memory values to be initialized to zero, potentially leading to a loss 0.2%