WID-SEC-W-2026-3021

Vulnerability from csaf_certbund - Published: 2026-08-25 22:00 - Updated: 2026-08-26 22:00
Summary
PolicyKit: Schwachstelle ermöglicht Denial of Service
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: PolicyKit ist ein Berechtigungsdienst, der die Kommunikation zwischen Benutzersoftware und Systemkomponenten erlaubt, wenn die Benutzersoftware dazu berechtigt ist.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle in PolicyKit ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
CVE-2026-4897
Affected products
Product Identifier Version Remediation
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
RESF Rocky Linux
RESF
 cpe:/o:resf:rocky_linux:- —
Open Source PolicyKit
Open Source
 cpe:/a:policykit:policykit:- —
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "PolicyKit ist ein Berechtigungsdienst, der die Kommunikation zwischen Benutzersoftware und Systemkomponenten erlaubt, wenn die Benutzersoftware dazu berechtigt ist.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in PolicyKit ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-3021 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3021.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-3021 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3021"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:59997 vom 2026-08-26",
        "url": "https://access.redhat.com/errata/RHSA-2026:59997"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-59997 vom 2026-08-26",
        "url": "https://linux.oracle.com/errata/ELSA-2026-59997.html"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:59997 vom 2026-08-26",
        "url": "https://errata.build.resf.org/RLSA-2026:59997"
      }
    ],
    "source_lang": "en-US",
    "title": "PolicyKit: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2026-08-26T22:00:00.000+00:00",
      "generator": {
        "date": "2026-08-27T07:32:31.986+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-3021",
      "initial_release_date": "2026-08-25T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-08-25T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-08-26T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Oracle Linux und Rocky Enterprise Software Foundation aufgenommen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source PolicyKit",
            "product": {
              "name": "Open Source PolicyKit",
              "product_id": "T005505",
              "product_identification_helper": {
                "cpe": "cpe:/a:policykit:policykit:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T056236",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "RESF Rocky Linux",
            "product": {
              "name": "RESF Rocky Linux",
              "product_id": "T054581",
              "product_identification_helper": {
                "cpe": "cpe:/o:resf:rocky_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "RESF"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-4897",
      "product_status": {
        "known_affected": [
          "T056236",
          "T054581",
          "T005505"
        ]
      },
      "release_date": "2026-08-25T22:00:00.000+00:00",
      "title": "CVE-2026-4897"
    }
  ]
}



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