{
  "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": "Kerberos ist ein verteilter Netzwerkdienst zur Authentifizierung. MIT Kerberos ist die freie Implementierung des \"Kerberos network authentication protocol\", des Massachusetts Institute of Technology (MIT).",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in MIT Kerberos ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- Linux\n- Windows\n- Sonstiges",
        "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-2022-1481 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-1481.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-1481 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-1481"
      },
      {
        "category": "external",
        "summary": "Juniper Security Advisory JSA70182 vom 2023-01-12",
        "url": "https://supportportal.juniper.net/s/article/2023-01-Security-Bulletin-Contrail-Service-Orchestration-Multiple-vulnerabilities-resolved-in-CSO-6-3-0?language=en_US"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2239 vom 2021-06-03",
        "url": "https://access.redhat.com/errata/RHSA-2021:2239"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9294 vom 2021-06-11",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9294.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:1593 vom 2021-05-18",
        "url": "https://access.redhat.com/errata/RHSA-2021:1593"
      },
      {
        "category": "external",
        "summary": "Github Krb5 vom 2020-11-05",
        "url": "https://github.com/krb5/krb5/commit/57415dda6cf04e73ffc3723be518eddfae599bfd"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2437 vom 2020-11-07",
        "url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00011.html"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202011-17 vom 2020-11-16",
        "url": "https://security.gentoo.org/glsa/202011-17"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3375-1 vom 2020-11-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007801.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3379-1 vom 2020-11-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007792.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3377-1 vom 2020-11-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007793.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-4795 vom 2020-11-22",
        "url": "https://www.debian.org/security/2020/dsa-4795"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2461 vom 2021-06-16",
        "url": "https://access.redhat.com/errata/RHSA-2021:2461"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2479 vom 2021-06-17",
        "url": "https://access.redhat.com/errata/RHSA-2021:2479"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2532 vom 2021-06-23",
        "url": "https://access.redhat.com/errata/RHSA-2021:2532"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2543 vom 2021-06-24",
        "url": "https://access.redhat.com/errata/RHSA-2021:2543"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:3016 vom 2021-08-06",
        "url": "https://access.redhat.com/errata/RHSA-2021:3016"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:3119 vom 2021-08-10",
        "url": "https://access.redhat.com/errata/RHSA-2021:3119"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:3556 vom 2021-09-17",
        "url": "https://access.redhat.com/errata/RHSA-2021:3556"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2022-1845 vom 2022-09-21",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2022-1845.html"
      },
      {
        "category": "external",
        "summary": "Oracle Solaris Third Party Bulletin-October 2022 vom 2022-10-18",
        "url": "https://www.oracle.com/security-alerts/bulletinoct2022.html"
      }
    ],
    "source_lang": "en-US",
    "title": "MIT Kerberos: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2023-01-11T23:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T16:58:47.843+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2022-1481",
      "initial_release_date": "2020-11-05T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2020-11-05T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2020-11-08T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2020-11-15T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Gentoo aufgenommen"
        },
        {
          "date": "2020-11-19T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-11-22T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2021-05-18T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-03T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-10T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-06-16T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-17T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-23T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-24T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-08-05T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-08-10T22:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-09-16T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-09-20T22:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2022-10-18T22:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates aufgenommen"
        },
        {
          "date": "2023-01-11T23:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von Juniper aufgenommen"
        }
      ],
      "status": "final",
      "version": "18"
    }
  },
  "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": [
          {
            "category": "product_name",
            "name": "Juniper Contrail Service Orchestration",
            "product": {
              "name": "Juniper Contrail Service Orchestration",
              "product_id": "T025794",
              "product_identification_helper": {
                "cpe": "cpe:/a:juniper:contrail_service_orchestration:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Juniper"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "MIT Kerberos \u003c 1.17.2",
                "product": {
                  "name": "MIT Kerberos \u003c 1.17.2",
                  "product_id": "T017628",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mit:kerberos:1.17.2"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "MIT Kerberos \u003c 1.18.3",
                "product": {
                  "name": "MIT Kerberos \u003c 1.18.3",
                  "product_id": "T017629",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mit:kerberos:1.18.3"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Kerberos"
          }
        ],
        "category": "vendor",
        "name": "MIT"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Oracle Solaris",
            "product": {
              "name": "Oracle Solaris",
              "product_id": "T002965",
              "product_identification_helper": {
                "cpe": "cpe:/a:oracle:solaris:-"
              }
            }
          }
        ],
        "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-2020-28196",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in MIT Kerberos. Der libkrb5 ASN.1-Decoder unterst\u00fctzt unbegrenzte BER-L\u00e4ngen. Die Tag-L\u00e4nge wird mithilfe einer Rekursion berechnet. Das Fehlen eines Rekursionslimits erm\u00f6glicht es einem entfernten anonymen Angreifer einen Stapel\u00fcberlauf zu verursachen und den Prozess zum Absturz zu bringen."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T002965",
          "398363",
          "T012167",
          "T004914",
          "T025794"
        ]
      },
      "release_date": "2020-11-05T23:00:00Z",
      "title": "CVE-2020-28196"
    }
  ]
}