Amd Epyc 7713 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-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-2021-26339 [MEDIUM] CVE-2021-26339: A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.

CVE-2021-26349 [MEDIUM] CVE-2021-26349: Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent (MA).

CVE-2021-26388 [MEDIUM] CWE-125 CVE-2021-26388: Improper validation of the BIOS directory may allow for searches to read beyond the directory table Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy in RAM, exposing out of bounds memory contents, resulting in a potential denial of service.

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-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-2021-26320 [MEDIUM] CWE-295 CVE-2021-26320: Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmwa Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP

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-2021-26321 [MEDIUM] CWE-20 CVE-2021-26321: Insufficient ID command validation in the SEV Firmware may allow a local authenticated attacker to p Insufficient ID command validation in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP.

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-2021-26330 [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-2021-26325 [MEDIUM] CWE-20 CVE-2021-26325: Insufficient input validation in the SNP_GUEST_REQUEST command may lead to a potential data abort er Insufficient input validation in the SNP_GUEST_REQUEST command may lead to a potential data abort error and a denial of service.

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-2021-26345 [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.