Amd Ryzen Series vulnerabilities

CVE-2021-26317 [HIGH] CVE-2021-26317: Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI f Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI flash resulting in a potential arbitrary code execution.

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-2021-26384 [HIGH] CWE-125 CVE-2021-26384: A malformed SMI (System Management Interface) command may allow an attacker to establish a corrupted A malformed SMI (System Management Interface) command may allow an attacker to establish a corrupted SMI Trigger Info data structure, potentially leading to out-of-bounds memory reads and writes when triggering an SMI resulting in a potential loss of resources.

CVE-2021-26335 [HIGH] CVE-2021-26335: Improper input and range checking in the AMD Secure Processor (ASP) boot loader image header may all Improper input and range checking in the AMD Secure Processor (ASP) boot loader image header may allow an attacker to use attacker-controlled values prior to signature validation potentially resulting in arbitrary code execution.

CVE-2021-26386 [HIGH] CWE-787 CVE-2021-26386: A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call t A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call to the Stage 2 Bootloader potentially leading to corrupt memory and code execution.

CVE-2021-26369 [HIGH] CWE-119 CVE-2021-26369: A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.

CVE-2021-26366 [HIGH] CVE-2021-26366: An attacker, who gained elevated privileges via some other vulnerability, may be able to read data f An attacker, who gained elevated privileges via some other vulnerability, may be able to read data from Boot ROM resulting in a loss of system integrity.

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-2021-26362 [HIGH] CVE-2021-26362: A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call w A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call which results in mapping sensitive System Management Network (SMN) registers leading to a loss of integrity and availability.

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-2021-26390 [MEDIUM] CVE-2021-26390: A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory po A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.

CVE-2021-26361 [MEDIUM] CVE-2021-26361: A malicious or compromised User Application (UApp) or AGESA Boot Loader (ABL) could be used by an at A malicious or compromised User Application (UApp) or AGESA Boot Loader (ABL) could be used by an attacker to exfiltrate arbitrary memory from the ASP stage 2 bootloader potentially leading to information disclosure.

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-2021-26337 [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.

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-2021-26388 [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-2021-26351 [MEDIUM] CWE-20 CVE-2021-26351: Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Mem Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in 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-2021-26352 [MEDIUM] CWE-119 CVE-2021-26352: Insufficient bound checks in System Management Unit (SMU) PCIe Hot Plug table may result in access/u Insufficient bound checks in System Management Unit (SMU) PCIe Hot Plug table may result in access/updates from/to invalid address space that could result in denial of service.