{
  "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 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."
    }, {
      "category" : "description",
      "text" : "Asterisk ist eine komplette Open Source Multiprotokoll Telefonanlage (PBX) auf Softwarebasis.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Asterisk ausnutzen, um einen Denial of Service Angriff durchzuführen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Linux\n- UNIX\n- Windows",
      "title" : "Betroffene Betriebssysteme"
    } ],
    "publisher" : {
      "category" : "other",
      "contact_details" : "csaf-provider@cert-bund.de",
      "name" : "Bundesamt für Sicherheit in der Informationstechnik",
      "namespace" : "https://www.bsi.bund.de"
    },
    "references" : [ {
      "category" : "self",
      "summary" : "WID-SEC-W-2024-3631 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2024-3631.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2024-3631 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-3631"
    }, {
      "category" : "external",
      "summary" : "Asterisk Project Security Advisory vom 2021-07-22",
      "url" : "https://downloads.asterisk.org/pub/security/AST-2021-007.html"
    }, {
      "category" : "external",
      "summary" : "Asterisk Project Security Advisory vom 2021-07-22",
      "url" : "https://downloads.asterisk.org/pub/security/AST-2021-008.html"
    }, {
      "category" : "external",
      "summary" : "Asterisk Project Security Advisory vom 2021-07-22",
      "url" : "https://downloads.asterisk.org/pub/security/AST-2021-009.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-2729 vom 2021-08-04",
      "url" : "https://lists.debian.org/debian-lts-announce/2021/08/msg00005.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DSA-4999 vom 2021-11-02",
      "url" : "https://www.debian.org/security/2021/dsa-4999"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-2962 vom 2022-03-28",
      "url" : "https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html"
    }, {
      "category" : "external",
      "summary" : "Gentoo Linux Security Advisory GLSA-202412-03 vom 2024-12-07",
      "url" : "https://security.gentoo.org/glsa/202412-03"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8122-1 vom 2026-03-24",
      "url" : "https://ubuntu.com/security/notices/USN-8122-1"
    } ],
    "source_lang" : "en-US",
    "title" : "Asterisk: Mehrere Schwachstellen ermöglichen Denial of Service",
    "tracking" : {
      "current_release_date" : "2026-03-24T23:00:00.000+00:00",
      "generator" : {
        "date" : "2026-03-25T10:21:10.831+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.5.0"
        }
      },
      "id" : "WID-SEC-W-2024-3631",
      "initial_release_date" : "2021-07-22T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2021-07-22T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2021-08-04T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2021-11-01T23:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2022-03-28T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2024-12-08T23:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von Gentoo aufgenommen"
      }, {
        "date" : "2026-03-24T23:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      } ],
      "status" : "final",
      "version" : "6"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "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_range",
          "name" : "<16.19.1",
          "product" : {
            "name" : "Open Source Asterisk <16.19.1",
            "product_id" : "T019958"
          }
        }, {
          "category" : "product_version",
          "name" : "16.19.1",
          "product" : {
            "name" : "Open Source Asterisk 16.19.1",
            "product_id" : "T019958-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:digium:asterisk:16.19.1"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<18.5.1",
          "product" : {
            "name" : "Open Source Asterisk <18.5.1",
            "product_id" : "T019959"
          }
        }, {
          "category" : "product_version",
          "name" : "18.5.1",
          "product" : {
            "name" : "Open Source Asterisk 18.5.1",
            "product_id" : "T019959-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:digium:asterisk:18.5.1"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<13.38.3",
          "product" : {
            "name" : "Open Source Asterisk <13.38.3",
            "product_id" : "T019960"
          }
        }, {
          "category" : "product_version",
          "name" : "13.38.3",
          "product" : {
            "name" : "Open Source Asterisk 13.38.3",
            "product_id" : "T019960-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:digium:asterisk:13.38.3"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<17.9.4",
          "product" : {
            "name" : "Open Source Asterisk <17.9.4",
            "product_id" : "T019961"
          }
        }, {
          "category" : "product_version",
          "name" : "17.9.4",
          "product" : {
            "name" : "Open Source Asterisk 17.9.4",
            "product_id" : "T019961-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:digium:asterisk:17.9.4"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Asterisk"
      } ],
      "category" : "vendor",
      "name" : "Open Source"
    }, {
      "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-2021-31878",
    "product_status" : {
      "known_affected" : [ "2951", "T000126", "T019959", "T019958", "T012167" ]
    },
    "release_date" : "2021-07-22T22:00:00.000+00:00",
    "title" : "CVE-2021-31878"
  }, {
    "cve" : "CVE-2021-32558",
    "product_status" : {
      "known_affected" : [ "T019961", "2951", "T000126", "T019959", "T019958", "T012167", "T019960" ]
    },
    "release_date" : "2021-07-22T22:00:00.000+00:00",
    "title" : "CVE-2021-32558"
  }, {
    "cve" : "CVE-2021-32686",
    "product_status" : {
      "known_affected" : [ "T019961", "2951", "T000126", "T019959", "T019958", "T012167", "T019960" ]
    },
    "release_date" : "2021-07-22T22:00:00.000+00:00",
    "title" : "CVE-2021-32686"
  } ]
}