Bug 2419371

Summary: CVE-2025-14104 util-linux: util-linux: Heap buffer overread in setpwnam() when processing 256-byte usernames [fedora-43]
Product: [Fedora] Fedora Reporter: Patrick Del Bello <pdelbell>
Component: util-linuxAssignee: Karel Zak <kzak>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: kzak
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["a767dc92-2f7d-4e72-af01-cf8b94afd9f4"]}
Fixed In Version: Doc Type: ---
Doc Text:
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Clone Of: Environment:
Last Closed: 2026-01-21 10:18:27 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2419369    

Description Patrick Del Bello 2025-12-05 14:24:32 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 Karel Zak 2026-01-21 10:18:27 UTC 
Fixed in upstream release v2.41.3 (F44, F43), and back-ported to F42 (util-linux-2.40.4-8.fc42).