CVE-2021-46795

A Time-of-check to time-of-use TOCTOU vulnerability exists in hw. This flaw allows an attacker to use a compromised BIOS to cause the trusted execution environment TEE operating system to read memory out-of-bounds, potentially resulting in a denial of service. Mitigation Please contact AMD for mo...

CVE-2021-46795

CVE-2021-46795 is a TOCTOU vulnerability where a compromised BIOS can trigger the TEE OS to read memory out-of-bounds, potentially causing a denial of service. Public details consistently describe the affected component as the TEE/ASP-SMU hardware stack in AMD platforms with BIOS-based mitigation...

Certain BIOS versions may include an AMI Test Key that could compromise Secure Boot protections - Lenovo Support NL

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Researcher demonstrate hardware based backdoor called Rakshasa

Security researcher Jonathan Brossard created a proof-of-concept hardware backdoor called Rakshasa that replaces a computer's BIOS Basic Input Output System and can compromise the operating system at boot time without leaving traces on the hard drive. In short, firmware is software that is stored...