Amd Epyc 7F32 Firmware vulnerabilities

CVE-2023-20529 [HIGH] CWE-119 CVE-2023-20529: Insufficient bound checks in the SMU may allow an attacker to update the from/to address space to an Insufficient bound checks in the SMU may allow an attacker to update the from/to address space to an invalid value potentially resulting in a denial of service.

CVE-2021-46764 [HIGH] CWE-787 CVE-2021-46764: Improper validation of DRAM addresses in SMU may allow an attacker to overwrite sensitive memory loc Improper validation of DRAM addresses in SMU may allow an attacker to overwrite sensitive memory locations within the ASP potentially resulting in a denial of service.

CVE-2020-12988 [HIGH] CVE-2020-12988: A potential denial of service (DoS) vulnerability exists in the integrated chipset that may allow a A potential denial of service (DoS) vulnerability exists in the integrated chipset that may allow a malicious attacker to hang the system when it is rebooted.

CVE-2021-26406 [HIGH] CVE-2021-26406: Insufficient validation in parsing Owner's Certificate Authority (OCA) certificates in SEV (AMD Secu Insufficient validation in parsing Owner's Certificate Authority (OCA) certificates in SEV (AMD Secure Encrypted Virtualization) and SEV-ES user application can lead to a host crash potentially resulting in denial of service.

CVE-2021-26370 [HIGH] CWE-20 CVE-2021-26370: Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_A Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.

CVE-2021-26408 [HIGH] CVE-2021-26408: Insufficient validation of elliptic curve points in SEV-legacy firmware may compromise SEV-legacy gu Insufficient validation of elliptic curve points in SEV-legacy firmware may compromise SEV-legacy guest migration potentially resulting in loss of guest's integrity or confidentiality.

CVE-2021-26402 [HIGH] CWE-787 CVE-2021-26402: Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox comm Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.

CVE-2023-20578 [MEDIUM] CWE-367 CVE-2023-20578: A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow an attacker with ring0 privileges and access t A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow an attacker with ring0 privileges and access to the BIOS menu or UEFI shell to modify the communications buffer potentially resulting in arbitrary code execution.

CVE-2020-12951 [HIGH] CWE-362 CVE-2020-12951: Race condition in ASP firmware could allow less privileged x86 code to perform ASP SMM (System Manag Race condition in ASP firmware could allow less privileged x86 code to perform ASP SMM (System Management Mode) operations.

CVE-2023-20525 [MEDIUM] CWE-20 CVE-2023-20525: Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to read Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory outside the bounds of a mapped register potentially leading to a denial of service.

CVE-2023-20527 [MEDIUM] CWE-20 CVE-2023-20527: Improper syscall input validation in the ASP Bootloader may allow a privileged attacker to read memo Improper syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory out-of-bounds, potentially leading to a denial-of-service.

CVE-2021-46775 [MEDIUM] CWE-20 CVE-2021-46775: Improper input validation in ABL may enable an attacker with physical access, to perform arbitrary m Improper input validation in ABL may enable an attacker with physical access, to perform arbitrary memory overwrites, potentially leading to a loss of integrity and code execution.

CVE-2020-12946 [HIGH] CWE-20 CVE-2020-12946: Insufficient input validation in ASP firmware for discrete TPM commands could allow a potential loss Insufficient input validation in ASP firmware for discrete TPM commands could allow a potential loss of integrity and denial of service.

CVE-2021-26403 [MEDIUM] CWE-345 CVE-2021-26403: Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potential Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality.

CVE-2020-12954 [MEDIUM] CWE-693 CVE-2020-12954: A side effect of an integrated chipset option may be able to be used by an attacker to bypass SPI RO A side effect of an integrated chipset option may be able to be used by an attacker to bypass SPI ROM protections, allowing unauthorized SPI ROM modification.

CVE-2021-26354 [MEDIUM] CWE-120 CVE-2021-26354: Insufficient bounds checking in ASP may allow an attacker to issue a system call from a compromised 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 of integrity.

CVE-2021-26312 [MEDIUM] CWE-665 CVE-2021-26312: Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) ma Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.

CVE-2021-26371 [MEDIUM] CVE-2021-26371: A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may 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.

CVE-2023-20532 [MEDIUM] CWE-20 CVE-2023-20532: Insufficient input validation in the SMU may allow an attacker to improperly lock resources, potenti Insufficient input validation in the SMU may allow an attacker to improperly lock resources, potentially resulting in a denial of service.

CVE-2021-26337 [MEDIUM] CVE-2021-26337: Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA read from i Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA read from invalid DRAM address to SRAM resulting in SMU not servicing further requests.