CVE-2021-46791

CVE-2021-46791 describes insufficient input validation during parsing of the System Management Mode (SMM) binary, potentially allowing a malicious SMM executable to corrupt DRTM user application memory and cause a denial of service. The vulnerability is associated with AMD’s System Management Mod...

CVE-2021-46791

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 service...

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...

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...

CVE-2021-26343

CVE-2021-26343 describes insufficient validation in AMD’s ASP BIOS and DRTM commands, potentially allowing malicious supervisor x86 software to disclose memory contents (information disclosure). The vulnerability is linked to the AMD Secure Processor (ASP) and BIOS/DRTM handling, with impact limi...

CVE-2021-26343: Exposure of Resource to Wrong Sphere

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...

CVE-2021-46791: Out-of-bounds Write

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 service...

CVE-2021-26353

Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity...

Authorization

Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity...

CVE-2021-26353

Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity...

CVE-2021-26353

CVE-2021-26353 – AMD SMM input validation vulnerability. The issue arises from failure to validate inputs in System Management Mode (SMM), which can allow an attacker to trigger a mishandled error and leave the DRTM UApp partially initialized, potentially causing loss of memory integrity. Affecte...

CVE-2021-26353: Improper Initialization

Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity...

System Management Mode deep dive: How SMM isolation hardens the platform

Ensuring that the platform firmware is healthy and trustworthy is fundamental to guaranteeing that powerful platform security features like Hypervisor-protected code integrity HVCI and Windows Defender Credential Guard are functioning as expected. Windows 10 achieves this by leveraging a...

System Management Mode deep dive: How SMM isolation hardens the platform

Ensuring that the platform firmware is healthy and trustworthy is fundamental to guaranteeing that powerful platform security features like Hypervisor-protected code integrity HVCI and Windows Defender Credential Guard are functioning as expected. Windows 10 achieves this by leveraging a...