{
  "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" : "OpenSSL ist eine im Quelltext frei verfügbare Bibliothek, die Secure Sockets Layer (SSL) und Transport Layer Security (TLS) implementiert.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSL ausnutzen, um einen Denial of Service Angriff durchzuführen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Linux\n- UNIX",
      "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-2023-3080 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2023-3080.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2023-3080 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-3080"
    }, {
      "category" : "external",
      "summary" : "OpenSSL Security Advisory 20200421 vom 2020-04-21",
      "url" : "https://www.openssl.org/news/secadv/20200421.txt"
    }, {
      "category" : "external",
      "summary" : "Arch Linux Security Advisory ASA-202004-18 vom 2020-04-21",
      "url" : "https://security.archlinux.org/ASA-202004-18/generate"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DSA-4661-1 vom 2020-04-21",
      "url" : "https://www.debian.org/security/2020/dsa-4661"
    }, {
      "category" : "external",
      "summary" : "FreeBSD Security Advisory FreeBSD-SA-20:11.openssl vom 2020-04-21",
      "url" : "https://security.freebsd.org/advisories/FreeBSD-SA-20:11.openssl.asc"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:1058-1 vom 2020-04-21",
      "url" : "https://www.suse.com/support/update/announcement/2020/suse-su-20201058-1.html"
    }, {
      "category" : "external",
      "summary" : "Microsoft Leitfaden für Sicherheitsupdates ADV200007 vom 2020-04-21",
      "url" : "https://portal.msrc.microsoft.com/de-de/security-guidance/advisory/ADV200007"
    }, {
      "category" : "external",
      "summary" : "Arch Linux Security Advisory ASA-202004-19 vom 2020-04-24",
      "url" : "https://security.archlinux.org/ASA-202004-19"
    }, {
      "category" : "external",
      "summary" : "Tenable Security Advisory",
      "url" : "https://de.tenable.com/security/tns-2020-03"
    }, {
      "category" : "external",
      "summary" : "securityaffairs.co vom 2020-05-05",
      "url" : "https://securityaffairs.co/wordpress/102763/hacking/cve-2020-1967-dos-openssl-exploit.html"
    }, {
      "category" : "external",
      "summary" : "Tenable Security Advisory",
      "url" : "https://de.tenable.com/security/tns-2020-04"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2020:2041-1 vom 2020-07-24",
      "url" : "http://lists.suse.com/pipermail/sle-security-updates/2020-July/007183.html"
    }, {
      "category" : "external",
      "summary" : "Tenable Security Advisory",
      "url" : "https://de.tenable.com/security/tns-2020-13"
    }, {
      "category" : "external",
      "summary" : "Tenable Security Advisory",
      "url" : "https://de.tenable.com/security/tns-2020-12"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2023-13024 vom 2023-12-07",
      "url" : "https://linux.oracle.com/errata/ELSA-2023-13024.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2023-13026 vom 2023-12-07",
      "url" : "https://linux.oracle.com/errata/ELSA-2023-13026.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2023-32791 vom 2023-12-07",
      "url" : "https://linux.oracle.com/errata/ELSA-2023-32791.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2023-32790 vom 2023-12-07",
      "url" : "https://linux.oracle.com/errata/ELSA-2023-32790.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2023-13027 vom 2023-12-07",
      "url" : "https://linux.oracle.com/errata/ELSA-2023-13027.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2023-13025 vom 2023-12-07",
      "url" : "https://linux.oracle.com/errata/ELSA-2023-13025.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2024-12408 vom 2024-06-05",
      "url" : "https://linux.oracle.com/errata/ELSA-2024-12408.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2024-12842 vom 2024-11-25",
      "url" : "https://linux.oracle.com/errata/ELSA-2024-12842.html"
    } ],
    "source_lang" : "en-US",
    "title" : "OpenSSL: Schwachstelle ermöglicht Denial of Service",
    "tracking" : {
      "current_release_date" : "2024-11-25T23:00:00.000+00:00",
      "generator" : {
        "date" : "2024-11-26T09:25:00.475+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.3.8"
        }
      },
      "id" : "WID-SEC-W-2023-3080",
      "initial_release_date" : "2020-04-21T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2020-04-21T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2020-04-23T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Arch Linux aufgenommen"
      }, {
        "date" : "2020-04-28T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Tenable aufgenommen"
      }, {
        "date" : "2020-05-05T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Exploit aufgenommen"
      }, {
        "date" : "2020-06-02T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von Tenable aufgenommen"
      }, {
        "date" : "2020-07-26T22:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-02-02T23:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von Tenable aufgenommen"
      }, {
        "date" : "2023-12-07T23:00:00.000+00:00",
        "number" : "8",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2024-06-04T22:00:00.000+00:00",
        "number" : "9",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2024-11-25T23:00:00.000+00:00",
        "number" : "10",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      } ],
      "status" : "final",
      "version" : "10"
    }
  },
  "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" : "FreeBSD Project FreeBSD OS",
        "product" : {
          "name" : "FreeBSD Project FreeBSD OS",
          "product_id" : "4035",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:freebsd:freebsd:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "FreeBSD Project"
    }, {
      "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:-"
          }
        }
      }, {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<1.1.1g",
          "product" : {
            "name" : "Open Source OpenSSL <1.1.1g",
            "product_id" : "T016345"
          }
        }, {
          "category" : "product_version",
          "name" : "1.1.1g",
          "product" : {
            "name" : "Open Source OpenSSL 1.1.1g",
            "product_id" : "T016345-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:openssl:openssl:1.1.1g"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "OpenSSL"
      } ],
      "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" : "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" : "Tenable Security Nessus",
        "product" : {
          "name" : "Tenable Security Nessus",
          "product_id" : "T016399",
          "product_identification_helper" : {
            "cpe" : "cpe:/a:tenable:nessus:-"
          }
        }
      }, {
        "category" : "product_name",
        "name" : "Tenable Security Nessus Network Monitor",
        "product" : {
          "name" : "Tenable Security Nessus Network Monitor",
          "product_id" : "T016632",
          "product_identification_helper" : {
            "cpe" : "cpe:/a:tenable:nessus_network_monitor:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Tenable Security"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2020-1967",
    "notes" : [ {
      "category" : "description",
      "text" : "In OpenSSL besteht eine Schwachstelle in der Funktion \"SSL_check_chain()\". Die TLS-Erweiterung \"signature_algorithms_cert\" wird nicht korrekt verarbeitet. Wenn die Gegenseite versucht, ein Zertifikat mit einem ungültigen oder nicht bekannten Signaturalgorithmus zu validieren, tritt eine NULL-Zeiger-Dereferenz auf. Ein Angreifer kann dies ausnutzen, um mit Hilfe eines speziell gestalteten Zertifikats in einem TLS-Handshake einen Denial-of-Service Zustand herbeizuführen."
    } ],
    "product_status" : {
      "known_affected" : [ "2951", "T002207", "4035", "T013312", "T016632", "T004914", "T016345", "T016399" ]
    },
    "release_date" : "2020-04-21T22:00:00.000+00:00",
    "title" : "CVE-2020-1967"
  } ]
}