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.
7.8CVSS
8AI Score
0.0004EPSS
Failure to verify the mode of CPU execution at the time of SNP_INIT may lead to a potential loss of memory integrity for SNP guests.
4.4CVSS
5.7AI Score
0.0004EPSS
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.
5.5CVSS
6AI Score
0.0004EPSS
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.
4.9CVSS
6.1AI Score
0.0004EPSS
Insufficient bounds checking in ASP may allow anattacker to issue a system call from a compromised ABL which may causearbitrary memory values to be initialized to zero, potentially leading to aloss of integrity.
5.5CVSS
7.2AI Score
0.0004EPSS
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.
5.5CVSS
6.1AI Score
0.0004EPSS
A TOCTOU in ASP bootloader may allow an attackerto tamper with the SPI ROM following data read to memory potentially resultingin S3 data corruption and information disclosure.
7.4CVSS
8.4AI Score
0.002EPSS
A compromised or malicious ABL or UApp couldsend a SHA256 system call to the bootloader, which may result in exposure ofASP memory to userspace, potentially leading to information disclosure.
5.5CVSS
7.1AI Score
0.0004EPSS
Insufficient input validation of mailbox data in theSMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentiallyleading to a loss of integrity and privilege escalation.
9.8CVSS
9.3AI Score
0.002EPSS
Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest.
4.4CVSS
5.5AI Score
0.0004EPSS
Insufficient address validation, may allow anattacker with a compromised ABL and UApp to corrupt sensitive memory locationspotentially resulting in a loss of integrity or availability.
7.1CVSS
7.3AI Score
0.0004EPSS
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.
7.8CVSS
7.9AI Score
0.0004EPSS
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.
7.1CVSS
7.2AI Score
0.0004EPSS
Insufficient validation of inputs inSVC_MAP_USER_STACK in the ASP (AMD Secure Processor) bootloader may allow anattacker with a malicious Uapp or ABL to send malformed or invalid syscall tothe bootloader resulting in a potential denial of service and loss ofintegrity.
9.1CVSS
9.1AI Score
0.001EPSS
Insufficient input validation in the SMU mayallow an attacker to corrupt SMU SRAM potentially leading to a loss ofintegrity or denial of service.
9.1CVSS
6.4AI Score
0.001EPSS
Insufficient input validation in the SMU mayenable a privileged attacker to write beyond the intended bounds of a sharedmemory buffer potentially leading to a loss of integrity.
7.5CVSS
7.9AI Score
0.001EPSS
Improper validation of DRAM addresses in SMU mayallow an attacker to overwrite sensitive memory locations within the ASPpotentially resulting in a denial of service.
7.5CVSS
7.8AI Score
0.001EPSS
Insufficient syscall input validation in the ASPBootloader may allow a privileged attacker to execute arbitrary DMA copies,which can lead to code execution.
8.8CVSS
9.1AI Score
0.001EPSS
Insufficient DRAM address validation in SystemManagement Unit (SMU) may allow an attacker to read/write from/to an invalidDRAM address, potentially resulting in denial-of-service.
7.5CVSS
7.8AI Score
0.001EPSS
Improper input validation in ABL may enable anattacker with physical access, to perform arbitrary memory overwrites,potentially leading to a loss of integrity and code execution.
6.8CVSS
7.2AI Score
0.001EPSS
Insufficient input validation on the modelspecific register: VM_HSAVE_PA may potentially lead to loss of SEV-SNP guestmemory integrity.
7.5CVSS
7.9AI Score
0.001EPSS
SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity.
5.3CVSS
6.3AI Score
0.0005EPSS
Improper access control settings in ASPBootloader may allow an attacker to corrupt the return address causing astack-based buffer overrun potentially leading to arbitrary code execution.
9.8CVSS
9.6AI Score
0.003EPSS
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.
5.7CVSS
6.1AI Score
0.0005EPSS
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.
5.7CVSS
6.1AI Score
0.001EPSS
An attacker with a compromised ASP couldpossibly send malformed commands to an ASP on another CPU, resulting in an outof bounds write, potentially leading to a loss a loss of integrity.
7.5CVSS
8AI Score
0.001EPSS
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.
6.5CVSS
6.6AI Score
0.001EPSS
Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality.
4.6CVSS
5.9AI Score
0.001EPSS
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.
6.5CVSS
6.7AI Score
0.001EPSS
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.
2.4CVSS
4.6AI Score
0.001EPSS
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.
7.5CVSS
7.5AI Score
0.001EPSS
Insufficient input validation of BIOS mailbox messages in SMU may result in out-of-bounds memory reads potentially resulting in a denial of service.
7.5CVSS
7.6AI Score
0.001EPSS
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.
7.5CVSS
7.5AI Score
0.001EPSS
Insufficient input validation in the SMU may allow an attacker to improperly lock resources, potentially resulting in a denial of service.
5.3CVSS
5.9AI Score
0.001EPSS
Insufficient DRAM address validation in SystemManagement Unit (SMU) may allow an attacker to read/write from/to an invalidDRAM address, potentially resulting in denial-of-service.
7.5CVSS
7.5AI Score
0.001EPSS
Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.
7.5CVSS
7.1AI Score
0.0005EPSS
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information disclosure.
4.7CVSS
6.6AI Score
0.001EPSS
A potential power side-channel vulnerability in some AMD processors may allow an authenticated attacker to use the power reporting functionality to monitor a program’s execution inside an AMD SEV VM potentially resulting in a leak of sensitive information.
6.5CVSS
6.3AI Score
0.001EPSS
Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential loss of guest virtual machine (VM) memory integrity.
6.5CVSS
6.5AI Score
0.0005EPSS
Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access.
4.4CVSS
4.5AI Score
0.0004EPSS