CVE-2025-14104

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

CVSS 6.1 MEDIUMEPSS 0.2%CWE-125

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

05 Dec 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

Affected products

Red Hat · Red Hat Ceph Storage 7 Red Hat · Red Hat Ceph Storage 8 Red Hat · Red Hat Ceph Storage 9 Red Hat · Red Hat Enterprise Linux 10 Red Hat · Red Hat Enterprise Linux 6 Red Hat · Red Hat Enterprise Linux 7 Red Hat · Red Hat Enterprise Linux 8 Red Hat · Red Hat Enterprise Linux 9 Red Hat · Red Hat Hardened Images Red Hat · Red Hat Insights proxy 1.5 Red Hat · Red Hat In-Vehicle Operating System 1 Red Hat · Red Hat OpenShift Container Platform 4 Red Hat · Red Hat Update Infrastructure 5 util-linux · util-linux

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References