WID-SEC-W-2022-0047

Vulnerability from csaf_certbund - Published: 2021-12-01 23:00 - Updated: 2025-11-24 23:00
Summary
Linux Kernel: 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: Der Kernel stellt den Kern des Linux Betriebssystems dar.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
CVE-2021-3802
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Amazon Linux 2
Amazon
 cpe:/o:amazon:linux_2:- —
Gentoo Linux
Gentoo
 cpe:/o:gentoo:linux:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Open Source Linux Kernel 5.13.x
Open Source / Linux Kernel
 cpe:/o:linux:linux_kernel:5.13.x 5.13.x
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": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel 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-2022-0047 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-0047.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-0047 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0047"
      },
      {
        "category": "external",
        "summary": "Syss Security Advisory vom 2021-12-01",
        "url": "https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-045.txt"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:1820 vom 2022-05-10",
        "url": "https://access.redhat.com/errata/RHSA-2022:1820"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:1919-1 vom 2022-06-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-June/011221.html"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2022-048 vom 2022-07-14",
        "url": "https://downloads.avaya.com/css/P8/documents/101082667"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:3154-1 vom 2022-09-07",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-September/012165.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:3160-1 vom 2022-09-07",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-September/012166.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2023-1921 vom 2023-02-06",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2023-1921.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3387 vom 2023-04-10",
        "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00010.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3387 vom 2023-04-07",
        "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00009.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2025-15020 vom 2025-09-03",
        "url": "https://linux.oracle.com/errata/ELSA-2025-15020.html"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202511-01 vom 2025-11-25",
        "url": "https://security.gentoo.org/glsa/202511-01"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2025-11-24T23:00:00.000+00:00",
      "generator": {
        "date": "2025-11-25T09:12:13.940+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2022-0047",
      "initial_release_date": "2021-12-01T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-12-01T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2022-05-10T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-06-02T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2022-07-17T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von AVAYA aufgenommen"
        },
        {
          "date": "2022-09-07T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-02-06T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2023-04-10T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2025-09-03T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2025-11-24T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Gentoo aufgenommen"
        }
      ],
      "status": "final",
      "version": "9"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T012167",
              "product_identification_helper": {
                "cpe": "cpe:/o:gentoo:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Gentoo"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "5.13.x",
                "product": {
                  "name": "Open Source Linux Kernel 5.13.x",
                  "product_id": "T021155",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:5.13.x"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux Kernel"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-3802",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "398363",
          "T012167",
          "T004914",
          "T021155"
        ]
      },
      "release_date": "2021-12-01T23:00:00.000+00:00",
      "title": "CVE-2021-3802"
    }
  ]
}



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