Amd Epyc 7473X Firmware vulnerabilities

CVE-2021-26364 [MEDIUM] CWE-119 CVE-2021-26364: Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read outside of the SRAM address range which could result in an exception handling leading to a potential denial of service.

CVE-2021-26375 [MEDIUM] CVE-2021-26375: Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in ac Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in access/updates from/to invalid address space that could result in denial of service.

CVE-2021-26372 [MEDIUM] CWE-119 CVE-2021-26372: Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access t Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service.

CVE-2021-26378 [MEDIUM] CWE-119 CVE-2021-26378: Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid add Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address space that could result in 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-2021-26373 [MEDIUM] CWE-20 CVE-2021-26373: Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunc Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction that could result in denial of resources and/or possibly denial of service.

CVE-2021-26376 [MEDIUM] CVE-2021-26376: Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features potentially resulting in denial of resources and/or 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-2021-26347 [MEDIUM] CWE-1284 CVE-2021-26347: Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attack Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service.

CVE-2021-26350 [MEDIUM] CWE-367 CVE-2021-26350: A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a me A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a message port register which may result in a potential denial of service.

CVE-2021-26342 [LOW] CVE-2021-26342: In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a parti In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV