ALBA-2021:0564 dbxtool bug fix and enhancement update
Not scored
Published
Check this codebase for ALBA-2021:0564 and fix it if it is affected.
What it is: ALBA-2021:0564 is a vulnerability in dbxtool, published on 16 Feb 2021.
Exploitation: There is no known exploitation of ALBA-2021:0564 in the wild and no public exploit code.
Affected product: dbxtool. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/ALBA-2021-0564/ (Markdown: https://insights.sbomify.com/ALBA-2021-0564/index.md)
A bug in dbxtool causes failures when listing EFI Signature Lists, potentially disrupting UEFI Secure Boot updates on AlmaLinux systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- Available
What is ALBA-2021:0564?
ALBA-2021:0564 is a vulnerability in dbxtool, published on 16 Feb 2021.
Official description
The dbxtool packages provide a command line utility and a one-shot systemd service for applying UEFI Secure Boot DBX updates.
Bug Fix(es) and Enhancement(s):
- [Dell AlmaLinux 8.2 BUG] dbxtool: fails to list with 'EFI Signature List is malformed' (BZ#1912474)
Which versions are affected by ALBA-2021:0564?
Linux distribution packages (1)
dbxtool AlmaLinux:8 | All versions | 8-5.el8_3.2 |
How do I fix ALBA-2021:0564?
Apply the vendor's patch.
Is ALBA-2021:0564 being exploited?
There is no known exploitation of ALBA-2021:0564 in the wild and no public exploit code.