wid-sec-w-2023-3080
Vulnerability from csaf_certbund
Published
2020-04-21 22:00
Modified
2024-06-04 22:00
Summary
OpenSSL: 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
OpenSSL ist eine im Quelltext frei verfügbare Bibliothek, die Secure Sockets Layer (SSL) und Transport Layer Security (TLS) implementiert.
Angriff
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSL ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- Linux - UNIX


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": "OpenSSL ist eine im Quelltext frei verf\u00fcgbare 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 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-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 f\u00fcr 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"
      }
    ],
    "source_lang": "en-US",
    "title": "OpenSSL: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-06-04T22:00:00.000+00:00",
      "generator": {
        "date": "2024-06-05T08:09:16.021+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "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"
        }
      ],
      "status": "final",
      "version": "9"
    }
  },
  "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": "\u003c1.1.1g",
                "product": {
                  "name": "Open Source OpenSSL \u003c1.1.1g",
                  "product_id": "T016345",
                  "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 ung\u00fcltigen 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 herbeizuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "4035",
          "T013312",
          "T016632",
          "T004914",
          "T016399"
        ]
      },
      "release_date": "2020-04-21T22:00:00Z",
      "title": "CVE-2020-1967"
    }
  ]
}


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