wid-sec-w-2022-0231
Vulnerability from csaf_certbund
Published
2021-12-14 23:00
Modified
2024-06-24 22:00
Summary
Linux Kernel: Schwachstelle ermöglicht Offenlegung von Informationen

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 entfernter, anonymer Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Informationen offenzulegen.
Betroffene Betriebssysteme
- Linux


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 entfernter, anonymer Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Informationen offenzulegen.",
        "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-2022-0231 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-0231.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-0231 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0231"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:4829 vom 2022-05-31",
        "url": "https://access.redhat.com/errata/RHSA-2022:4829"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:4835 vom 2022-05-31",
        "url": "https://access.redhat.com/errata/RHSA-2022:4835"
      },
      {
        "category": "external",
        "summary": "SuSE Security Advisory vom 2021-12-14",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009895.html"
      },
      {
        "category": "external",
        "summary": "SuSE Security Advisory vom 2021-12-14",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009910.html"
      },
      {
        "category": "external",
        "summary": "RedHat Security Information CVE-2021-20322",
        "url": "https://access.redhat.com/security/cve/cve-2021-20322"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:4099-1 vom 2021-12-15",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009913.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2843 vom 2021-12-16",
        "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5268-1 vom 2022-02-03",
        "url": "https://ubuntu.com/security/notices/USN-5268-1"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2022-1563 vom 2022-02-08",
        "url": "https://alas.aws.amazon.com/ALAS-2022-1563.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-1988 vom 2022-05-17",
        "url": "https://linux.oracle.com/errata/ELSA-2022-1988.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-5096 vom 2022-03-09",
        "url": "https://lists.debian.org/debian-security-announce/2022/msg00063.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2941 vom 2022-03-09",
        "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:4956 vom 2022-06-09",
        "url": "https://access.redhat.com/errata/RHSA-2022:4956"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-9260 vom 2022-04-05",
        "url": "http://linux.oracle.com/errata/ELSA-2022-9260.html"
      },
      {
        "category": "external",
        "summary": "ORACLE OVMSA-2022-0010 vom 2022-04-05",
        "url": "https://oss.oracle.com/pipermail/oraclevm-errata/2022-April/001050.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:1975 vom 2022-05-10",
        "url": "https://access.redhat.com/errata/RHSA-2022:1975"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:1988 vom 2022-05-10",
        "url": "https://access.redhat.com/errata/RHSA-2022:1988"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:5483 vom 2022-07-01",
        "url": "https://access.redhat.com/errata/RHSA-2022:5483"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALASKERNEL-5.4-2024-073 vom 2024-06-25",
        "url": "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2024-073.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Offenlegung von Informationen",
    "tracking": {
      "current_release_date": "2024-06-24T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:27:29.281+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2022-0231",
      "initial_release_date": "2021-12-14T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-12-14T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-12-15T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-12-16T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2022-02-02T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2022-02-07T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2022-03-09T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2022-04-05T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Oracle Linux und ORACLE aufgenommen"
        },
        {
          "date": "2022-05-10T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-05-17T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-05-31T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-06-08T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-07-03T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-06-24T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Amazon aufgenommen"
        }
      ],
      "status": "final",
      "version": "13"
    }
  },
  "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": "Open Source Linux Kernel",
            "product": {
              "name": "Open Source Linux Kernel",
              "product_id": "6368",
              "product_identification_helper": {
                "cpe": "cpe:/o:linux: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"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-20322",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle im Linux Kernel. Ein Fehler in der Verarbeitung von empfangenen ICMP-Fehlern erm\u00f6glicht offene UDP-Ports schnell zu scannen. Ein authentisierter Angreifer kann diese Schwachstelle ausnutzen, um die UDP-Randomisierung des Quellports effektiv zu umgehen. In der Folge kann er Informationen offenlegen."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "6368",
          "T000126",
          "398363",
          "T004914"
        ]
      },
      "release_date": "2021-12-14T23:00:00.000+00:00",
      "title": "CVE-2021-20322"
    }
  ]
}


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