Amd Epyc 7H12 Firmware vulnerabilities

CVE-2023-20531 [HIGH] CWE-119 CVE-2023-20531: Insufficient bound checks in the SMU may allow an attacker to update the SRAM from/to address space Insufficient bound checks in the SMU may allow an attacker to update the SRAM from/to address space to an invalid value potentially resulting in a denial of service.

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-2021-26398 [HIGH] CWE-787 CVE-2021-26398: Insufficient input validation in SYS_KEY_DERIVE system call in a compromised user application or ABL Insufficient input validation in SYS_KEY_DERIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential arbitrary code execution.

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-2021-26316 [HIGH] CWE-20 CVE-2021-26316: Failure to validate the communication buffer and communication service in the BIOS may allow an atta Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code execution.

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-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-2023-20532 [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-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-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-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.

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-2021-26370 [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-2020-12944 [HIGH] CWE-20 CVE-2020-12944: Insufficient validation of BIOS image length by ASP Firmware could lead to arbitrary code execution. Insufficient validation of BIOS image length by ASP Firmware could lead to arbitrary code execution.

CVE-2021-26338 [HIGH] CWE-284 CVE-2021-26338: Improper access controls in System Management Unit (SMU) may allow for an attacker to override perfo Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.

CVE-2021-26322 [HIGH] CWE-320 CVE-2021-26322: Persistent platform private key may not be protected with a random IV leading to a potential “two ti Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.

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-2021-26320 [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-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-2021-26312 [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.