Medium

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

Type: advisorySource: Official CVE List1 source record

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.

Announced 5 Dec 2025Source revision 1

Original source ↗

CVE-2025-14104

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2025-14104

util-linux

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 10

Source reference: /containers/cna/affected/1/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 8

Source reference: /containers/cna/affected/2/product

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Red Hat Enterprise Linux 8

Source reference: /containers/cna/affected/3/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
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Red Hat Enterprise Linux 9

Source reference: /containers/cna/affected/4/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 9

Source reference: /containers/cna/affected/5/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/6/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/7/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/8/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/9/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/10/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Ceph Storage 7

Source reference: /containers/cna/affected/11/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Ceph Storage 8

Source reference: /containers/cna/affected/12/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Ceph Storage 9

Source reference: /containers/cna/affected/13/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Hardened Images

Source reference: /containers/cna/affected/14/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Insights proxy 1.5

Source reference: /containers/cna/affected/15/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/16/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/17/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/18/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/19/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 6

Source reference: /containers/cna/affected/20/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 7

Source reference: /containers/cna/affected/21/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat OpenShift Container Platform 4

Source reference: /containers/cna/affected/22/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat OpenShift Container Platform 4

Source reference: /containers/cna/affected/23/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "util-linux",
    "product": "util-linux",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "2.41.3",
        "versionType": "semver"
      }
    ],
    "packageName": "util-linux",
    "collectionURL": "https://github.com/util-linux/util-linux",
    "defaultStatus": "unaffected"
  },
  {
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      "cpe:/o:redhat:enterprise_linux:10.1"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 10",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.40.2-15.el10_1",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "util-linux",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8::appstream",
      "cpe:/a:redhat:enterprise_linux:8::crb",
      "cpe:/o:redhat:enterprise_linux:8::baseos"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.32.1-48.el8_10",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "util-linux",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8::appstream",
      "cpe:/a:redhat:enterprise_linux:8::crb",
      "cpe:/o:redhat:enterprise_linux:8::baseos"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.32.1-48.el8_10",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "util-linux",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::appstream",
      "cpe:/a:redhat:enterprise_linux:9::crb",
      "cpe:/o:redhat:enterprise_linux:9::baseos"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.37.4-21.el9_7",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "util-linux",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::appstream",
      "cpe:/a:redhat:enterprise_linux:9::crb",
      "cpe:/o:redhat:enterprise_linux:9::baseos"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.37.4-21.el9_7",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "util-linux",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:cert_manager:1.18::el9"
    ],
    "vendor": "Red Hat",
    "product": "Cert Manager support for Red Hat OpenShift release 1.18",
    "versions": [
      {
        "status": "unaffected",
        "version": "1791459707",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "cert-manager/jetstack-cert-manager-acmesolver-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:cert_manager:1.18::el9"
    ],
    "vendor": "Red Hat",
    "product": "Cert Manager support for Red Hat OpenShift release 1.18",
    "versions": [
      {
        "status": "unaffected",
        "version": "1791459711",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "cert-manager/jetstack-cert-manager-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:cert_manager:1.18::el9"
    ],
    "vendor": "Red Hat",
    "product": "Cert Manager support for Red Hat OpenShift release 1.18",
    "versions": [
      {
        "status": "unaffected",
        "version": "1791459759",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "cert-manager/cert-manager-istio-csr-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:cert_manager:1.18::el9"
    ],
    "vendor": "Red Hat",
    "product": "Cert Manager support for Red Hat OpenShift release 1.18",
    "versions": [
      {
        "status": "unaffected",
        "version": "1789029076",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "cert-manager/cert-manager-operator-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:cert_manager:1.18::el9"
    ],
    "vendor": "Red Hat",
    "product": "Cert Manager support for Red Hat OpenShift release 1.18",
    "versions": [
      {
        "status": "unaffected",
        "version": "1791966259",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "cert-manager/cert-manager-operator-bundle",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:ceph_storage:7::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Ceph Storage 7",
    "versions": [
      {
        "status": "unaffected",
        "version": "1770632724",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhceph/rhceph-7-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:ceph_storage:8::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Ceph Storage 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "1770630907",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhceph/rhceph-8-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:ceph_storage:9::el10"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Ceph Storage 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "1771816028",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhceph/rhceph-9-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:hummingbird:1"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Hardened Images",
    "versions": [
      {
        "status": "unaffected",
        "version": "2.42-7.1.hum1",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "util-linux-main",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:insights_proxy:1.5::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Insights proxy 1.5",
    "versions": [
      {
        "status": "unaffected",
        "version": "1770740405",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "insights-proxy/insights-proxy-container-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhui:5::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Update Infrastructure 5",
    "versions": [
      {
        "status": "unaffected",
        "version": "1770646925",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhui5/installer-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhui:5::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Update Infrastructure 5",
    "versions": [
      {
        "status": "unaffected",
        "version": "1773670073",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhui5/cds-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhui:5::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Update Infrastructure 5",
    "versions": [
      {
        "status": "unaffected",
        "version": "1773672059",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhui5/haproxy-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhui:5::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Update Infrastructure 5",
    "versions": [
      {
        "status": "unaffected",
        "version": "1773670137",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhui5/rhua-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:6"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 6",
    "packageName": "util-linux-ng",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:7"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7",
    "packageName": "util-linux",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:openshift:4"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift Container Platform 4",
    "packageName": "openshift/ose-rhel-coreos-8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:openshift:4"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift Container Platform 4",
    "packageName": "openshift/ose-rhel-coreos-9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  }
]

Related CVEs: CVE-2025-14104
Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event: #23059 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 06:12:37 GMT
Publisher date: Fri, 05 Dec 2025 16:22:09 GMT

Read the original announcement