CVE-2025-14104

Medium

Open

TLP:CLEAR

Util-linux: util-linux: heap buffer overread in setpwnam() when processing 256-byte usernames

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Description

A flaw was found in util-linux. This vulnerability allows a heap buffer overread when processing 256-byte usernames, specifically within the `setpwnam()` function, affecting SUID (Set User ID) login-utils utilities writing to the password database.

Details

CVSS Score: 6.1
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Confidence: 90%
Published: Dec 5, 2025
Last Modified: Aug 21, 2026

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