3rd Gen EPYC Security Vulnerabilities
Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other...
6.8AI Score
0.0004EPSS
Due to a code bug in Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of guest...
7.2AI Score
0.0004EPSS
Improper Access Control in System Management Mode (SMM) may allow an attacker access to the SPI flash potentially leading to arbitrary code...
7.8AI Score
0.0004EPSS
A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug...
3.2CVSS
7.2AI Score
0.0004EPSS
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...
6.5CVSS
7.3AI Score
0.0005EPSS
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...
5.7CVSS
5.3AI Score
0.0005EPSS
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in...
7.5CVSS
5.4AI Score
0.001EPSS
A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest...
3.3CVSS
7.2AI Score
0.0004EPSS
Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory...
7.5CVSS
5.3AI Score
0.0005EPSS
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...
4.6CVSS
5.1AI Score
0.001EPSS
SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory...
5.3CVSS
7.4AI Score
0.0005EPSS
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in...
7.5CVSS
7.3AI Score
0.001EPSS
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...
4.9CVSS
7.1AI Score
0.0004EPSS
Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code...
9.8CVSS
7.4AI Score
0.013EPSS
Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local...
4.4CVSS
5.1AI Score
0.0004EPSS
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...
4.7CVSS
6.6AI Score
0.0004EPSS
An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive...
5.5CVSS
6.7AI 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...
6.5CVSS
6.3AI Score
0.001EPSS
Insufficient validation of inputs in SVC_MAP_USER_STACK in the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious Uapp or ABL to send malformed or invalid syscall to the bootloader resulting in a potential denial of service and loss of...
9.1CVSS
9.1AI Score
0.0005EPSS
Improper access control settings in ASP Bootloader may allow an attacker to corrupt the return address causing a stack-based buffer overrun potentially leading to arbitrary code...
9.8CVSS
9.6AI Score
0.001EPSS
An attacker with a compromised ASP could possibly send malformed commands to an ASP on another CPU, resulting in an out of bounds write, potentially leading to a loss a loss of...
7.5CVSS
8AI Score
0.0005EPSS
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer potentially leading to a loss of...
7.5CVSS
7.9AI Score
0.0005EPSS
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...
5.5CVSS
7.2AI Score
0.0004EPSS
Insufficient input validation of mailbox data in the SMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentially leading to a loss of integrity and privilege...
9.8CVSS
9.2AI Score
0.001EPSS
Insufficient input validation on the model specific register: VM_HSAVE_PA may potentially lead to loss of SEV-SNP guest memory...
7.5CVSS
7.9AI Score
0.001EPSS
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...
6.8CVSS
7.2AI Score
0.001EPSS
Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to execute arbitrary DMA copies, which can lead to code...
8.8CVSS
9.1AI Score
0.001EPSS
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...
7.5CVSS
7.8AI Score
0.0005EPSS
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...
7.5CVSS
8.5AI Score
0.0004EPSS
Insufficient address validation, may allow an attacker with a compromised ABL and UApp to corrupt sensitive memory locations potentially resulting in a loss of integrity or...
7.1CVSS
7.3AI Score
0.0004EPSS
A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and information...
7.4CVSS
8.5AI Score
0.001EPSS
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...
5.5CVSS
7.2AI Score
0.0004EPSS
Insufficient input validation in the SMU may allow an attacker to corrupt SMU SRAM potentially leading to a loss of integrity or denial of...
9.1CVSS
9AI Score
0.0005EPSS
When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information...
4.7CVSS
5.8AI Score
0.0004EPSS
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...
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...
5.3CVSS
5.9AI 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...
6.5CVSS
6.6AI 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...
2.4CVSS
4.7AI Score
0.0004EPSS
Insufficient input validation in SEV firmware may allow an attacker to perform out-of-bounds memory reads within the ASP boot loader, potentially leading to a denial of...
5.5CVSS
6AI Score
0.0004EPSS
Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of...
5.5CVSS
6AI Score
0.0004EPSS
Insufficient input validation in the ASP may allow an attacker with physical access, unauthorized write access to memory potentially leading to a loss of integrity or denial of...
6.1CVSS
6.5AI Score
0.0004EPSS
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...
5.7CVSS
6.2AI Score
0.0004EPSS
Improper syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory out-of-bounds, potentially leading to a...
6.5CVSS
6.7AI 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...
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...
7.5CVSS
7.5AI Score
0.001EPSS
Insufficient input validation in SVC_ECC_PRIMITIVE 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 loss of integrity and...
7.1CVSS
7.1AI Score
0.0004EPSS
Insufficient input validation in ASP may allow an attacker with a malicious BIOS to potentially cause a denial of...
7.5CVSS
7.4AI Score
0.001EPSS
Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid message port registers that could result in a potential...
5.5CVSS
6.1AI Score
0.0004EPSS
Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory...
7.8CVSS
7.7AI Score
0.0004EPSS
Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information...
5.5CVSS
6.2AI Score
0.0004EPSS