CVE-2021-38576 (GCVE-0-2021-38576)

Vulnerability from cvelistv5 – Published: 2022-01-03 21:07 – Updated: 2025-11-03 19:26
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
  • Security Feature Bypass
Assigner
References
Impacted products
Vendor Product Version
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
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            "url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html"
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    "state": "PUBLISHED"
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.