WID-SEC-W-2026-0838

Vulnerability from csaf_certbund - Published: 2018-02-21 23:00 - Updated: 2026-03-24 23:00
Summary
Asterisk: 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: Asterisk ist eine komplette Open Source Multiprotokoll Telefonanlage (PBX) auf Softwarebasis.
Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Asterisk ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux - UNIX
CVE-2018-1000098
Affected products
Product Identifier Version Remediation
Open Source Asterisk <15.2.2
Open Source / Asterisk
 <15.2.2
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source Asterisk <14.7.6
Open Source / Asterisk
 <14.7.6
Digium Certified Asterisk <13.18-cert3
Digium / Certified Asterisk
 <13.18-cert3
Open Source Asterisk <13.19.2
Open Source / Asterisk
 <13.19.2
CVE-2018-1000099
Affected products
Product Identifier Version Remediation
Open Source Asterisk <15.2.2
Open Source / Asterisk
 <15.2.2
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source Asterisk <14.7.6
Open Source / Asterisk
 <14.7.6
Digium Certified Asterisk <13.18-cert3
Digium / Certified Asterisk
 <13.18-cert3
Open Source Asterisk <13.19.2
Open Source / Asterisk
 <13.19.2
CVE-2018-7284
Affected products
Product Identifier Version Remediation
Open Source Asterisk <15.2.2
Open Source / Asterisk
 <15.2.2
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source Asterisk <14.7.6
Open Source / Asterisk
 <14.7.6
Digium Certified Asterisk <13.18-cert3
Digium / Certified Asterisk
 <13.18-cert3
Open Source Asterisk <13.19.2
Open Source / Asterisk
 <13.19.2
CVE-2018-7285
Affected products
Product Identifier Version Remediation
Open Source Asterisk <15.2.2
Open Source / Asterisk
 <15.2.2
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source Asterisk <14.7.6
Open Source / Asterisk
 <14.7.6
Digium Certified Asterisk <13.18-cert3
Digium / Certified Asterisk
 <13.18-cert3
Open Source Asterisk <13.19.2
Open Source / Asterisk
 <13.19.2
CVE-2018-7286
Affected products
Product Identifier Version Remediation
Open Source Asterisk <15.2.2
Open Source / Asterisk
 <15.2.2
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source Asterisk <14.7.6
Open Source / Asterisk
 <14.7.6
Digium Certified Asterisk <13.18-cert3
Digium / Certified Asterisk
 <13.18-cert3
Open Source Asterisk <13.19.2
Open Source / Asterisk
 <13.19.2
CVE-2018-7287
Affected products
Product Identifier Version Remediation
Open Source Asterisk <15.2.2
Open Source / Asterisk
 <15.2.2
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source Asterisk <14.7.6
Open Source / Asterisk
 <14.7.6
Digium Certified Asterisk <13.18-cert3
Digium / Certified Asterisk
 <13.18-cert3
Open Source Asterisk <13.19.2
Open Source / Asterisk
 <13.19.2
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": "Asterisk ist eine komplette Open Source Multiprotokoll Telefonanlage (PBX) auf Softwarebasis.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Asterisk ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX",
        "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-2026-0838 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2018/wid-sec-w-2026-0838.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0838 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0838"
      },
      {
        "category": "external",
        "summary": "Asterisk Project Security Advisory AST-2018-001 vom 2018-02-21",
        "url": "http://downloads.asterisk.org/pub/security/AST-2018-001.html"
      },
      {
        "category": "external",
        "summary": "Asterisk Project Security Advisory AST-2018-002 vom 2018-02-21",
        "url": "http://downloads.asterisk.org/pub/security/AST-2018-002.html"
      },
      {
        "category": "external",
        "summary": "Asterisk Project Security Advisory AST-2018-003 vom 2018-02-21",
        "url": "http://downloads.asterisk.org/pub/security/AST-2018-003.html"
      },
      {
        "category": "external",
        "summary": "Asterisk Project Security Advisory AST-2018-004 vom 2018-02-21",
        "url": "http://downloads.asterisk.org/pub/security/AST-2018-004.html"
      },
      {
        "category": "external",
        "summary": "Asterisk Project Security Advisory AST-2018-005 vom 2018-02-21",
        "url": "http://downloads.asterisk.org/pub/security/AST-2018-005.html"
      },
      {
        "category": "external",
        "summary": "Asterisk Project Security Advisory AST-2018-006 vom 2018-02-21",
        "url": "http://downloads.asterisk.org/pub/security/AST-2018-006.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-4320 vom 2018-10-17",
        "url": "https://www.debian.org/security/2018/dsa-4320"
      },
      {
        "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: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2026-03-24T23:00:00.000+00:00",
      "generator": {
        "date": "2026-03-25T10:21:04.197+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0838",
      "initial_release_date": "2018-02-21T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2018-02-21T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initial Release"
        },
        {
          "date": "2018-02-21T23:00:00.000+00:00",
          "number": "2",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2018-09-20T22:00:00.000+00:00",
          "number": "3",
          "summary": "cve added"
        },
        {
          "date": "2018-10-16T22:00:00.000+00:00",
          "number": "4",
          "summary": "New remediations available"
        },
        {
          "date": "2026-03-24T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "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": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c13.18-cert3",
                "product": {
                  "name": "Digium Certified Asterisk \u003c13.18-cert3",
                  "product_id": "T011872"
                }
              },
              {
                "category": "product_version",
                "name": "13.18-cert3",
                "product": {
                  "name": "Digium Certified Asterisk 13.18-cert3",
                  "product_id": "T011872-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:digium:certified_asterisk:13.18-cert3"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Certified Asterisk"
          }
        ],
        "category": "vendor",
        "name": "Digium"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c15.2.2",
                "product": {
                  "name": "Open Source Asterisk \u003c15.2.2",
                  "product_id": "T011869"
                }
              },
              {
                "category": "product_version",
                "name": "15.2.2",
                "product": {
                  "name": "Open Source Asterisk 15.2.2",
                  "product_id": "T011869-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:digium:asterisk:15.2.2"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c14.7.6",
                "product": {
                  "name": "Open Source Asterisk \u003c14.7.6",
                  "product_id": "T011870"
                }
              },
              {
                "category": "product_version",
                "name": "14.7.6",
                "product": {
                  "name": "Open Source Asterisk 14.7.6",
                  "product_id": "T011870-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:digium:asterisk:14.7.6"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c13.19.2",
                "product": {
                  "name": "Open Source Asterisk \u003c13.19.2",
                  "product_id": "T011871"
                }
              },
              {
                "category": "product_version",
                "name": "13.19.2",
                "product": {
                  "name": "Open Source Asterisk 13.19.2",
                  "product_id": "T011871-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:digium:asterisk:13.19.2"
                  }
                }
              }
            ],
            "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-2018-1000098",
      "product_status": {
        "known_affected": [
          "T011869",
          "2951",
          "T000126",
          "T011870",
          "T011872",
          "T011871"
        ]
      },
      "release_date": "2018-02-21T23:00:00.000+00:00",
      "title": "CVE-2018-1000098"
    },
    {
      "cve": "CVE-2018-1000099",
      "product_status": {
        "known_affected": [
          "T011869",
          "2951",
          "T000126",
          "T011870",
          "T011872",
          "T011871"
        ]
      },
      "release_date": "2018-02-21T23:00:00.000+00:00",
      "title": "CVE-2018-1000099"
    },
    {
      "cve": "CVE-2018-7284",
      "product_status": {
        "known_affected": [
          "T011869",
          "2951",
          "T000126",
          "T011870",
          "T011872",
          "T011871"
        ]
      },
      "release_date": "2018-02-21T23:00:00.000+00:00",
      "title": "CVE-2018-7284"
    },
    {
      "cve": "CVE-2018-7285",
      "product_status": {
        "known_affected": [
          "T011869",
          "2951",
          "T000126",
          "T011870",
          "T011872",
          "T011871"
        ]
      },
      "release_date": "2018-02-21T23:00:00.000+00:00",
      "title": "CVE-2018-7285"
    },
    {
      "cve": "CVE-2018-7286",
      "product_status": {
        "known_affected": [
          "T011869",
          "2951",
          "T000126",
          "T011870",
          "T011872",
          "T011871"
        ]
      },
      "release_date": "2018-02-21T23:00:00.000+00:00",
      "title": "CVE-2018-7286"
    },
    {
      "cve": "CVE-2018-7287",
      "product_status": {
        "known_affected": [
          "T011869",
          "2951",
          "T000126",
          "T011870",
          "T011872",
          "T011871"
        ]
      },
      "release_date": "2018-02-21T23:00:00.000+00:00",
      "title": "CVE-2018-7287"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.