REDHAT-BUG-1941098
First published: Fri Mar 19 2021(Updated: )
RPM does not require subkeys to have a valid binding signature. This could potentially result in a signature being wrongly trusted in the following (rather contrived) scenario: A malicious subkey (to which an attacker has the secret key) is added to a legitimate public key, via a process that rejects main keys but not subkeys and does not itself check binding signatures. The main key is exported and then imported into RPM.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| RPM Package Manager |
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Reference Links
- https://github.com/rpm-software-management/rpm/pull/1788
- https://access.redhat.com/errata/RHSA-2022:0254
- https://access.redhat.com/errata/RHSA-2022:0368
- https://access.redhat.com/errata/RHSA-2022:0634
- https://access.redhat.com/security/cve/cve-2021-3521
- https://bugzilla.redhat.com/show_bug.cgi?id=1941098
Frequently Asked Questions
What is the severity of REDHAT-BUG-1941098?
REDHAT-BUG-1941098 is considered a security vulnerability due to potential signature trust issues.
How do I fix REDHAT-BUG-1941098?
To mitigate REDHAT-BUG-1941098, ensure that RPM is updated to the latest version that addresses this issue.
What software is affected by REDHAT-BUG-1941098?
REDHAT-BUG-1941098 affects the RPM Package Manager.
What does REDHAT-BUG-1941098 entail?
REDHAT-BUG-1941098 involves RPM not requiring subkeys to have a valid binding signature, which may lead to untrusted signatures being accepted.
Who is responsible for REDHAT-BUG-1941098?
The vulnerability, REDHAT-BUG-1941098, is managed by the RPM Package Manager's development team.
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