Known Vulnerabilities
CVE-2021-46771
Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by a compromised user application.
CVE-2021-26324
A bug with the SEV-ES TMR may lead to a potential loss of memory integrity for SNP-active VMs.
CVE-2021-26332
Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability.
CVE-2021-26370
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-2021-26325
Insufficient input validation in the SNP_GUEST_REQUEST command may lead to a potential data abort error and a denial of service.
CVE-2021-26330
AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources.
CVE-2021-26327
Insufficient validation of guest context in the SNP Firmware could lead to a potential loss of guest confidentiality.
CVE-2021-26323
Failure to validate SEV Commands while SNP is active may result in a potential impact to memory integrity.
CVE-2020-12961
A potential vulnerability exists in AMD Platform Security Processor (PSP) that may allow an attacker to zero any privileged register on the System Management Network which may lead to bypassing SPI ROM protections.
CVE-2021-26315
When the AMD Platform Security Processor (PSP) boot rom loads, authenticates, and subsequently decrypts an encrypted FW, due to insufficient verification of the integrity of decrypted image, arbitrary code may be executed in the PSP when encrypted firmware images are used.
CVE-2020-12954
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-2021-26331
AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbitrary code execution.
CVE-2021-26321
Insufficient ID command validation in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP.
CVE-2021-26320
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-2021-26322
Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.
CVE-2021-26329
AMD System Management Unit (SMU) may experience an integer overflow when an invalid length is provided which may result in a potential loss of resources.
CVE-2021-26338
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-2021-26326
Failure to validate VM_HSAVE_PA during SNP_INIT may result in a loss of memory integrity.