{
  "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": "NGINX ist eine Webserver-, Reverse Proxy- und E-Mail-Proxy Software.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in NGINX ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "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 f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2022-0463 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-0463.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-0463 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0463"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1839-1 vom 2021-06-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008913.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2021-1507 vom 2021-06-02",
        "url": "https://alas.aws.amazon.com/ALAS-2021-1507.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2258 vom 2021-06-07",
        "url": "https://access.redhat.com/errata/RHSA-2021:2258"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2021-078 vom 2021-06-10",
        "url": "https://downloads.avaya.com/css/P8/documents/101076191"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2278 vom 2021-06-07",
        "url": "https://access.redhat.com/errata/RHSA-2021:2278"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2259 vom 2021-06-07",
        "url": "https://access.redhat.com/errata/RHSA-2021:2259"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2290 vom 2021-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2021:2290"
      },
      {
        "category": "external",
        "summary": "[nginx-announce] nginx-1.21.0 vom 2021-05-25",
        "url": "http://mailman.nginx.org/pipermail/nginx-announce/2021/000298.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4967-1 vom 2021-05-26",
        "url": "https://ubuntu.com/security/notices/USN-4967-1"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202105-38 vom 2021-05-26",
        "url": "https://security.gentoo.org/glsa/202105-38"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-2259 vom 2021-06-08",
        "url": "http://linux.oracle.com/errata/ELSA-2021-2259.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-2290 vom 2021-06-10",
        "url": "http://linux.oracle.com/errata/ELSA-2021-2290.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1792-1 vom 2021-05-27",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-May/008878.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4967-2 vom 2021-05-27",
        "url": "https://ubuntu.com/security/notices/USN-4967-2"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-4921 vom 2021-05-28",
        "url": "https://www.debian.org/security/2021/dsa-4921"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2670 vom 2021-05-30",
        "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00025.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1815-1 vom 2021-05-31",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-May/008889.html"
      },
      {
        "category": "external",
        "summary": "Arch Linux Security Advisory ASA-202106-36 vom 2021-06-15",
        "url": "https://security.archlinux.org/ASA-202106-36"
      },
      {
        "category": "external",
        "summary": "Arch Linux Security Advisory ASA-202106-48 vom 2021-06-22",
        "url": "https://security.archlinux.org/ASA-202106-48"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:3925 vom 2021-10-20",
        "url": "https://access.redhat.com/errata/RHSA-2021:3925"
      },
      {
        "category": "external",
        "summary": "Exploit CVE-2021-23017 vom 2021-08-30",
        "url": "https://github.com/dottorvenom/exploit-archive/blob/main/CVE-2021-23017%20Nginx%201.14%20heap%20corruption.py"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:3653 vom 2021-09-23",
        "url": "https://access.redhat.com/errata/RHSA-2021:3653"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:3873 vom 2021-10-15",
        "url": "https://access.redhat.com/errata/RHSA-2021:3873"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:4618 vom 2021-11-11",
        "url": "https://access.redhat.com/errata/RHSA-2021:4618"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:0323 vom 2022-01-31",
        "url": "https://access.redhat.com/errata/RHSA-2022:0323"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-0323 vom 2022-02-01",
        "url": "https://linux.oracle.com/errata/ELSA-2022-0323.html"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2022-013 vom 2022-02-11",
        "url": "https://downloads.avaya.com/css/P8/documents/101080487"
      },
      {
        "category": "external",
        "summary": "Brocade Security Advisory BSA-2022-1516 vom 2022-06-24",
        "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2022-1516"
      },
      {
        "category": "external",
        "summary": "Brocade Security Advisory BSA-2021-1516 vom 2022-11-10",
        "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1516"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALASNGINX1-2023-003 vom 2023-09-27",
        "url": "https://alas.aws.amazon.com/AL2/ALASNGINX1-2023-003.html"
      },
      {
        "category": "external",
        "summary": "Moxa Security Advisory MPSA-241044 vom 2024-11-04",
        "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-241044-vulnerabilities-identified-in-mds-g4028-l3-series-and-eds-g512e"
      }
    ],
    "source_lang": "en-US",
    "title": "NGINX: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-11-03T23:00:00.000+00:00",
      "generator": {
        "date": "2024-11-04T09:10:10.520+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.8"
        }
      },
      "id": "WID-SEC-W-2022-0463",
      "initial_release_date": "2021-05-25T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-05-25T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-05-26T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Ubuntu und Gentoo aufgenommen"
        },
        {
          "date": "2021-05-27T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE und Ubuntu aufgenommen"
        },
        {
          "date": "2021-05-30T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2021-05-31T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-03T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Fedora, SUSE und Amazon aufgenommen"
        },
        {
          "date": "2021-06-06T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-07T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-08T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-06-10T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-06-13T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von AVAYA aufgenommen"
        },
        {
          "date": "2021-06-14T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Arch Linux aufgenommen"
        },
        {
          "date": "2021-06-21T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Arch Linux aufgenommen"
        },
        {
          "date": "2021-08-30T22:00:00.000+00:00",
          "number": "14",
          "summary": "Exploit aufgenommen"
        },
        {
          "date": "2021-09-23T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-10-14T22:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-10-19T22:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-11-11T23:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-01-30T23:00:00.000+00:00",
          "number": "19",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-01-31T23:00:00.000+00:00",
          "number": "20",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-03-02T23:00:00.000+00:00",
          "number": "21",
          "summary": "Neue Updates von AVAYA aufgenommen"
        },
        {
          "date": "2022-06-26T22:00:00.000+00:00",
          "number": "22",
          "summary": "Neue Updates von BROCADE aufgenommen"
        },
        {
          "date": "2022-11-09T23:00:00.000+00:00",
          "number": "23",
          "summary": "Neue Updates von BROCADE aufgenommen"
        },
        {
          "date": "2023-09-27T22:00:00.000+00:00",
          "number": "24",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2024-11-03T23:00:00.000+00:00",
          "number": "25",
          "summary": "Neue Updates von moxa aufgenommen"
        }
      ],
      "status": "final",
      "version": "25"
    }
  },
  "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 Experience Portal",
            "product": {
              "name": "Avaya Aura Experience Portal",
              "product_id": "T015519",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_experience_portal:-"
              }
            }
          },
          {
            "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": "vendor",
        "name": "Avaya"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cv2.2.0.2",
                "product": {
                  "name": "Broadcom Brocade SANnav \u003cv2.2.0.2",
                  "product_id": "T023628"
                }
              },
              {
                "category": "product_version",
                "name": "v2.2.0.2",
                "product": {
                  "name": "Broadcom Brocade SANnav v2.2.0.2",
                  "product_id": "T023628-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:broadcom:brocade_sannav:v2.2.0.2"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2.2.1",
                "product": {
                  "name": "Broadcom Brocade SANnav \u003c2.2.1",
                  "product_id": "T024158"
                }
              },
              {
                "category": "product_version",
                "name": "2.2.1",
                "product": {
                  "name": "Broadcom Brocade SANnav 2.2.1",
                  "product_id": "T024158-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:broadcom:brocade_sannav:2.2.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Brocade SANnav"
          }
        ],
        "category": "vendor",
        "name": "Broadcom"
      },
      {
        "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",
                "name": "MDS-G4028-L3 Series",
                "product": {
                  "name": "Moxa Switch MDS-G4028-L3 Series",
                  "product_id": "T038734",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:moxa:switch:mds-g4028-l3_series"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "EDS-G512E",
                "product": {
                  "name": "Moxa Switch EDS-G512E",
                  "product_id": "T038749",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:moxa:switch:eds-g512e"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Switch"
          }
        ],
        "category": "vendor",
        "name": "Moxa"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c1.21.0",
                "product": {
                  "name": "NGINX NGINX \u003c1.21.0",
                  "product_id": "T019416"
                }
              },
              {
                "category": "product_version",
                "name": "1.21.0",
                "product": {
                  "name": "NGINX NGINX 1.21.0",
                  "product_id": "T019416-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nginx:nginx:1.21.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "NGINX"
          }
        ],
        "category": "vendor",
        "name": "NGINX"
      },
      {
        "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": "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": "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-2021-23017",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in NGINX, welche auf einen 1-Byte-Puffer\u00fcberlauf zur\u00fcckzuf\u00fchren ist. Dieser kann auftreten, wenn eine Antwort von einem DNS-Server verarbeitet wird, welche durch einen Angreifer manipuliert wurde. Ein entfernter, anonymer Angreifer, der speziell gestaltete UDP-Pakete erzeugen kann, kann diese Schwachstelle ausnutzen, um beliebigen Programmcode auszuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T015519",
          "T015518",
          "67646",
          "T015516",
          "T038749",
          "T013312",
          "T015127",
          "T015126",
          "T038734",
          "T012167",
          "T004914",
          "T023628",
          "2951",
          "T002207",
          "T019416",
          "T000126",
          "398363",
          "T024158"
        ]
      },
      "release_date": "2021-05-25T22:00:00.000+00:00",
      "title": "CVE-2021-23017"
    }
  ]
}