wid-sec-w-2023-1261
Vulnerability from csaf_certbund
Published
2021-05-26 22:00
Modified
2023-05-21 22:00
Summary
Internet Systems Consortium DHCP: Schwachstelle ermöglicht Denial of Service

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
Internet Systems Consortium (ISC) DHCP ist eine weit verbreitete Client- und Server-Implementierung des Dynamic Host Configuration Protokolls (DHCP) unter Unix. Sie ermöglicht die automatische Verteilung von IP-Informationen, wie z. B. IP-Adresse, Netzwerkmaske, Defaultgateway vom Server zu Clients.
Angriff
Ein Angreifer aus dem benachbarten Netzwerk kann eine Schwachstelle in Internet Systems Consortium DHCP ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- UNIX - 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": "Internet Systems Consortium (ISC) DHCP ist eine weit verbreitete Client- und Server-Implementierung des Dynamic Host Configuration Protokolls (DHCP) unter Unix. Sie erm\u00f6glicht die automatische Verteilung von IP-Informationen, wie z. B. IP-Adresse, Netzwerkmaske, Defaultgateway vom Server zu Clients.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer aus dem benachbarten Netzwerk kann eine Schwachstelle in Internet Systems Consortium DHCP ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- 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-2023-1261 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2023-1261.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-1261 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1261"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202305-22 vom 2023-05-21",
        "url": "https://security.gentoo.org/glsa/202305-22"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1841-1 vom 2021-06-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008914.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2674 vom 2021-06-03",
        "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00002.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4969-3 vom 2021-06-07",
        "url": "https://ubuntu.com/security/notices/USN-4969-3"
      },
      {
        "category": "external",
        "summary": "ISC Security Advisory vom 2021-05-26",
        "url": "https://kb.isc.org/docs/cve-2021-25217"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-2359 vom 2021-06-10",
        "url": "http://linux.oracle.com/errata/ELSA-2021-2359.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-2357 vom 2021-06-11",
        "url": "http://linux.oracle.com/errata/ELSA-2021-2357.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4969-1 vom 2021-05-27",
        "url": "https://ubuntu.com/security/notices/USN-4969-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4969-2 vom 2021-05-27",
        "url": "https://ubuntu.com/security/notices/USN-4969-2"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1822-1 vom 2021-06-01",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008906.html"
      },
      {
        "category": "external",
        "summary": "Arch Linux Security Advisory ASA-202106-11 vom 2021-06-01",
        "url": "https://security.archlinux.org/ASA-202106-11"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:14740-1 vom 2021-06-01",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008905.html"
      },
      {
        "category": "external",
        "summary": "Arch Linux Security Advisory ASA-202106-10 vom 2021-06-01",
        "url": "https://security.archlinux.org/ASA-202106-10"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2357 vom 2021-06-09",
        "url": "https://access.redhat.com/errata/RHSA-2021:2357"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2359 vom 2021-06-09",
        "url": "https://access.redhat.com/errata/RHSA-2021:2359"
      },
      {
        "category": "external",
        "summary": "CentOS Security Advisory CESA-2021:2357 vom 2021-06-14",
        "url": "http://centos-announce.2309468.n4.nabble.com/CentOS-announce-CESA-2021-2357-Important-CentOS-7-dhcp-Security-Update-tp4646203.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2418 vom 2021-06-14",
        "url": "https://access.redhat.com/errata/RHSA-2021:2418"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2420 vom 2021-06-14",
        "url": "https://access.redhat.com/errata/RHSA-2021:2420"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2419 vom 2021-06-14",
        "url": "https://access.redhat.com/errata/RHSA-2021:2419"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2414 vom 2021-06-14",
        "url": "https://access.redhat.com/errata/RHSA-2021:2414"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2416 vom 2021-06-14",
        "url": "https://access.redhat.com/errata/RHSA-2021:2416"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2405 vom 2021-06-14",
        "url": "https://access.redhat.com/errata/RHSA-2021:2405"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2415 vom 2021-06-14",
        "url": "https://access.redhat.com/errata/RHSA-2021:2415"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9314 vom 2021-06-17",
        "url": "https://linux.oracle.com/errata/ELSA-2021-9314.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2469 vom 2021-06-17",
        "url": "https://access.redhat.com/errata/RHSA-2021:2469"
      },
      {
        "category": "external",
        "summary": "ORACLE OVMSA-2021-0018 vom 2021-06-17",
        "url": "https://oss.oracle.com/pipermail/oraclevm-errata/2021-June/001018.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2519 vom 2021-06-22",
        "url": "https://access.redhat.com/errata/RHSA-2021:2519"
      },
      {
        "category": "external",
        "summary": "ORACLE OVMSA-2021-0019 vom 2021-06-22",
        "url": "https://oss.oracle.com/pipermail/oraclevm-errata/2021-June/001019.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2021-1654 vom 2021-06-23",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2021-1654.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2555 vom 2021-07-06",
        "url": "https://access.redhat.com/errata/RHSA-2021:2555"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2021-1510 vom 2021-07-13",
        "url": "https://alas.aws.amazon.com/ALAS-2021-1510.html"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2021-085 vom 2021-07-15",
        "url": "https://downloads.avaya.com/css/P8/documents/101076672"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2021-086 vom 2021-07-15",
        "url": "https://downloads.avaya.com/css/P8/documents/101076674"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2021-085 vom 2021-07-15",
        "url": "https://downloads.avaya.com/css/P8/documents/101076673"
      },
      {
        "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": "F5 Security Advisory K08832573 vom 2022-05-20",
        "url": "https://support.f5.com/csp/article/K08832573"
      }
    ],
    "source_lang": "en-US",
    "title": "Internet Systems Consortium DHCP: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2023-05-21T22:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T17:28:22.731+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2023-1261",
      "initial_release_date": "2021-05-26T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-05-26T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-05-27T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora und Ubuntu aufgenommen"
        },
        {
          "date": "2021-06-01T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE und Arch Linux aufgenommen"
        },
        {
          "date": "2021-06-03T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE und Debian aufgenommen"
        },
        {
          "date": "2021-06-07T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-06-08T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-10T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-06-14T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von CentOS und Red Hat aufgenommen"
        },
        {
          "date": "2021-06-16T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-06-17T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Red Hat und ORACLE aufgenommen"
        },
        {
          "date": "2021-06-22T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Red Hat und ORACLE aufgenommen"
        },
        {
          "date": "2021-06-23T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2021-07-06T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-07-12T22:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2021-07-18T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von AVAYA aufgenommen"
        },
        {
          "date": "2021-08-05T22:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-08-10T22:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-05-22T22:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von F5 aufgenommen"
        },
        {
          "date": "2023-05-21T22:00:00.000+00:00",
          "number": "19",
          "summary": "Neue Updates von Gentoo aufgenommen"
        }
      ],
      "status": "final",
      "version": "19"
    }
  },
  "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": "Avaya Aura Application Enablement Services",
            "product": {
              "name": "Avaya Aura Application Enablement Services",
              "product_id": "T015516",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_application_enablement_services:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura Communication Manager",
            "product": {
              "name": "Avaya Aura Communication Manager",
              "product_id": "T015126",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:communication_manager:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura Session Manager",
            "product": {
              "name": "Avaya Aura Session Manager",
              "product_id": "T015127",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:session_manager:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura System Manager",
            "product": {
              "name": "Avaya Aura System Manager",
              "product_id": "T015518",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_system_manager:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Web License Manager",
            "product": {
              "name": "Avaya Web License Manager",
              "product_id": "T016243",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:web_license_manager:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Avaya"
      },
      {
        "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": "F5 BIG-IP",
            "product": {
              "name": "F5 BIG-IP",
              "product_id": "T001663",
              "product_identification_helper": {
                "cpe": "cpe:/a:f5:big-ip:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "F5"
      },
      {
        "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_name",
                "name": "Internet Systems Consortium DHCP \u003c 4.1-ESV-R16-P1",
                "product": {
                  "name": "Internet Systems Consortium DHCP \u003c 4.1-ESV-R16-P1",
                  "product_id": "T019427",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:isc:dhcp:4.1-esv-r16-p1"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Internet Systems Consortium DHCP \u003c 4.4.2-P1",
                "product": {
                  "name": "Internet Systems Consortium DHCP \u003c 4.4.2-P1",
                  "product_id": "T019428",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:isc:dhcp:4.4.2-p1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "DHCP"
          }
        ],
        "category": "vendor",
        "name": "Internet Systems Consortium"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Arch Linux",
            "product": {
              "name": "Open Source Arch Linux",
              "product_id": "T013312",
              "product_identification_helper": {
                "cpe": "cpe:/o:archlinux:archlinux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Open Source CentOS",
            "product": {
              "name": "Open Source CentOS",
              "product_id": "1727",
              "product_identification_helper": {
                "cpe": "cpe:/o:centos:centos:-"
              }
            }
          }
        ],
        "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": "product_name",
            "name": "Oracle VM 3",
            "product": {
              "name": "Oracle VM 3",
              "product_id": "T019617",
              "product_identification_helper": {
                "cpe": "cpe:/a:oracle:vm:3"
              }
            }
          }
        ],
        "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-2021-25217",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Internet Systems Consortium DHCP. Der Fehler besteht im \"ISC DHCP-Paket\" aufgrund eines Puffer\u00fcberlaufs im Code zum Parsen von Lease-Dateien. Ein anonymer Angreifer aus dem benachbarten Netzwerk kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand auszul\u00f6sen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T015518",
          "67646",
          "T015516",
          "T013312",
          "T015127",
          "T015126",
          "T012167",
          "T004914",
          "T016243",
          "2951",
          "T002207",
          "T000126",
          "T001663",
          "T019617",
          "398363",
          "1727"
        ]
      },
      "release_date": "2021-05-26T22:00:00Z",
      "title": "CVE-2021-25217"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.