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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2023-20528 |
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. Published: January 11, 2023; 3:15:13 AM -0500 |
V4.0:(not available) V3.1: 2.4 LOW V2.0:(not available) |
CVE-2023-20527 |
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. Published: January 11, 2023; 3:15:13 AM -0500 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0:(not available) |
CVE-2023-20525 |
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. Published: January 11, 2023; 3:15:13 AM -0500 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0:(not available) |
CVE-2023-20523 |
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. Published: January 11, 2023; 3:15:13 AM -0500 |
V4.0:(not available) V3.1: 5.7 MEDIUM V2.0:(not available) |
CVE-2021-26404 |
Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure. Published: January 11, 2023; 3:15:11 AM -0500 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0:(not available) |
CVE-2021-26402 |
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. Published: January 11, 2023; 3:15:11 AM -0500 |
V4.0:(not available) V3.1: 7.1 HIGH V2.0:(not available) |
CVE-2021-26398 |
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. Published: January 11, 2023; 3:15:11 AM -0500 |
V4.0:(not available) V3.1: 7.8 HIGH V2.0:(not available) |
CVE-2021-26396 |
Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest. Published: January 11, 2023; 3:15:11 AM -0500 |
V4.0:(not available) V3.1: 4.4 MEDIUM V2.0:(not available) |
CVE-2021-26355 |
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. Published: January 11, 2023; 3:15:11 AM -0500 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0:(not available) |
CVE-2021-26343 |
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. Published: January 11, 2023; 3:15:10 AM -0500 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0:(not available) |
CVE-2021-26328 |
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. Published: January 11, 2023; 3:15:10 AM -0500 |
V4.0:(not available) V3.1: 4.4 MEDIUM V2.0:(not available) |
CVE-2021-26316 |
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. Published: January 11, 2023; 3:15:10 AM -0500 |
V4.0:(not available) V3.1: 7.8 HIGH V2.0:(not available) |
CVE-2022-23824 |
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure. Published: November 09, 2022; 4:15:13 PM -0500 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0:(not available) |
CVE-2021-46778 |
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information. Published: August 10, 2022; 4:15:24 PM -0400 |
V4.0:(not available) V3.1: 5.6 MEDIUM V2.0:(not available) |
CVE-2021-46744 |
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time. Published: May 11, 2022; 1:15:09 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 2.1 LOW |
CVE-2021-26388 |
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. Published: May 11, 2022; 1:15:08 PM -0400 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2021-26378 |
Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service. Published: May 11, 2022; 1:15:08 PM -0400 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2021-26376 |
Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features potentially resulting in denial of resources and/or denial of service. Published: May 11, 2022; 1:15:08 PM -0400 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2021-26375 |
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. Published: May 11, 2022; 1:15:08 PM -0400 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2021-26373 |
Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction that could result in denial of resources and/or possibly denial of service. Published: May 11, 2022; 1:15:08 PM -0400 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0: 4.9 MEDIUM |