microsoft / microsoft/secureboot_objects

[Bug]: PostSignedObjects/SignedByKEK2023/dbx_x64.efiauth2 is incomplete

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#467 3 comments 0 reactions 0 assignees View on GitHub

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state:needs-owner state:needs-triage type:bug urgency:high
Dominant language
Python
Stars
289
Forks
89
Avg merge
3d 10h
Merged PRs (30d)
7

Description

Is there an existing issue for this?
  • I have searched existing issues
Current Behavior

It contains 291 hashes.

Expected Behavior

The previous version had 443 hashes, and with two hashes added I'd expect the number of hashes go up to 445, not down to 291.

Steps To Reproduce
Build Environment
- OS(s):
- Tool Chain(s):
- Targets Impacted:
Version Information
Tag: v1.7.0-signed
Urgency

High

Are you going to fix this?

Someone else needs to fix it

Do you need maintainer feedback?

No maintainer feedback needed

Anything else?

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by installing virt-firmware and running inspect-sbvar-update.py -u against PostSignedObjects/SignedByKEK2023/dbx_x64.efiauth2. Compare its 291 hashes with the previous version and determine why the two expected additions leave the object at 291; done means the signed object contains the expected 445 hashes and the inspection command confirms it.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
55/100

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