Bug 2421885 - CVE-2025-66506 buildah: Fulcio: Denial of Service via crafted OpenID Connect (OIDC) token [fedora-42]
Summary: CVE-2025-66506 buildah: Fulcio: Denial of Service via crafted OpenID Connect ...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: buildah
Version: 42
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Lokesh Mandvekar
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["01cd840e-f3b3-44e7-832f-1...
Depends On:
Blocks: CVE-2025-66506
TreeView+ depends on / blocked
 
Reported: 2025-12-12 21:36 UTC by Praise Ogwuche
Modified: 2025-12-15 13:34 UTC (History)
11 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2025-12-15 13:34:57 UTC
Type: ---
Embargoed:

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Description Praise Ogwuche 2025-12-12 21:36:38 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams
Comment 1 Lokesh Mandvekar 2025-12-15 13:34:57 UTC 
vulnerable code not vendored in buildah main or the latest `release-1.42` branch shipped in Fedora. 

Ref: 
fulcio change: https://github.com/sigstore/fulcio/commit/765a0e57608b9ef390e1eeeea8595b9054c63a5a
buildah fulcio vendor: https://github.com/containers/buildah/tree/release-1.42/vendor/github.com/sigstore/fulcio
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