| Name | CVE-2021-38576 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1014468 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| edk2 (PTS) | jessie/non-free | 0~20131112.2590861a-3 | vulnerable |
| stretch (security), stretch (lts), stretch | 0~20161202.7bbe0b3e-1+deb9u2 | vulnerable | |
| buster (security), buster, buster (lts) | 0~20181115.85588389-3+deb10u4 | vulnerable | |
| bullseye (security), bullseye | 2020.11-2+deb11u2 | vulnerable | |
| bookworm (security), bookworm | 2022.11-6+deb12u1 | fixed | |
| sid, trixie | 2024.11-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| edk2 | source | jessie | (unfixed) | end-of-life | ||
| edk2 | source | stretch | (unfixed) | end-of-life | ||
| edk2 | source | (unstable) | 2021.11-1 | 1014468 |
[bullseye] - edk2 <no-dsa> (Minor issue)
[buster] - edk2 <no-dsa> (Minor issue)
https://bugzilla.tianocore.org/show_bug.cgi?id=3499