CVE-2021-38576

HIGH

7.5

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado1/3/2022

Ultima modificacion11/3/2025

Fuentenvd

Avistamientos honeypot0

Productos afectados

tianocore:edk2

Referencias

https://bugzilla.tianocore.org/show_bug.cgi?id=3499(infosec@edk2.groups.io)

https://bugzilla.tianocore.org/show_bug.cgi?id=3499(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.