CVE-2021-38576 — n/a / EDK II

Description (CNA)

A BIOS bug in firmware for a particular PC model leaves the Platform authorization value empty. This can be used to permanently brick the TPM in multiple ways, as well as to non-permanently DoS the system.

Affected (CNA)

Vendor / product	Versions
n/a / EDK II	affected edk2-stable202105, edk2-stable202102, edk2-stable202011, edk2-stable202008, edk2-stable202005, edk2-stable202002, edk2-stable201911, edk2-stable201908, edk2-stable201905, edk2-stable201903, edk2-stable201811, edk2-stable201808

CWE

No CWE identifiers supplied.

References

https://bugzilla.tianocore.org/show_bug.cgi?id=3499

ADP enrichment

CVE

No English description supplied.

https://bugzilla.tianocore.org/show_bug.cgi?id=3499
https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html