CVE-2021-38576

NameCVE-2021-38576
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1014468

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
edk2 (PTS)buster0~20181115.85588389-3+deb10u3vulnerable
bullseye2020.11-2+deb11u1vulnerable
bullseye (security)2020.11-2+deb11u2vulnerable
bookworm2022.11-6vulnerable
bookworm (security)2022.11-6+deb12u1vulnerable
sid, trixie2024.02-2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
edk2source(unstable)(unfixed)1014468

Notes

[bookworm] - edk2 <no-dsa> (Minor issue)
[bullseye] - edk2 <no-dsa> (Minor issue)
[buster] - edk2 <no-dsa> (Minor issue)
https://bugzilla.tianocore.org/show_bug.cgi?id=3499 (private)

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