{
  "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": "Red Hat Enterprise Linux (RHEL) ist eine popul\u00e4re Linux-Distribution.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux in openvswitch ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "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-2023-0964 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-0964.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-0964 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-0964"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202311-16 vom 2023-11-26",
        "url": "https://security.gentoo.org/glsa/202311-16"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2536-1 vom 2023-06-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-June/015229.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2023:3491 vom 2023-06-06",
        "url": "https://access.redhat.com/errata/RHSA-2023:3491"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2296-1 vom 2023-05-25",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-May/015001.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2274-1 vom 2023-05-23",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-May/014939.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2275-1 vom 2023-05-23",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-May/014938.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2023:1823 vom 2023-04-18",
        "url": "https://access.redhat.com/errata/RHSA-2023:1823"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2023:1824 vom 2023-04-18",
        "url": "https://access.redhat.com/errata/RHSA-2023:1824"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-7DA03DC2AE vom 2023-04-14",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-7da03dc2ae"
      },
      {
        "category": "external",
        "summary": "RedHat Security Advisory vom 2023-04-13",
        "url": "https://access.redhat.com/errata/RHSA-2023:1770"
      },
      {
        "category": "external",
        "summary": "RedHat Security Advisory vom 2023-04-13",
        "url": "https://access.redhat.com/errata/RHSA-2023:1769"
      },
      {
        "category": "external",
        "summary": "RedHat Security Advisory vom 2023-04-13",
        "url": "https://access.redhat.com/errata/RHSA-2023:1766"
      },
      {
        "category": "external",
        "summary": "RedHat Security Advisory vom 2023-04-13",
        "url": "https://access.redhat.com/errata/RHSA-2023:1765"
      }
    ],
    "source_lang": "en-US",
    "title": "Red Hat Enterprise Linux (openvswitch): Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2023-11-26T23:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T17:23:46.802+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2023-0964",
      "initial_release_date": "2023-04-13T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-04-13T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-04-16T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2023-04-18T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2023-05-23T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-05-25T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-06-06T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2023-06-18T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-11-26T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Gentoo aufgenommen"
        }
      ],
      "status": "final",
      "version": "8"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "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_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": "product_name",
                "name": "Red Hat Enterprise Linux 8",
                "product": {
                  "name": "Red Hat Enterprise Linux 8",
                  "product_id": "T014111",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:8"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux 9",
                "product": {
                  "name": "Red Hat Enterprise Linux 9",
                  "product_id": "T023632",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:9"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "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"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-1668",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Red Hat Enterprise Linux in openvswitch (OVS). Bei der Verarbeitung eines IP-Pakets mit Protokoll 0 setzt OVS den Datenpfadfluss, ohne dass die Aktion den IP-Header \u00e4ndert. Dieses Problem f\u00fchrt dazu, dass ein Datapath-Flow installiert wird, der zu allen IP-Protokollen f\u00fcr diesen Flow passt, aber mit einer falschen Aktion, was m\u00f6glicherweise zu einer falschen Behandlung anderer IP-Pakete mit einem IP-Protokoll != 0 f\u00fchrt, die zu diesem dp-Flow passen. Ein Angreifer kann diese Schwachstelle ausnutzen, um einen Denial of Service zu verursachen oder Informationen offenzulegen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T002207",
          "T023632",
          "67646",
          "T012167",
          "T014111",
          "74185"
        ]
      },
      "release_date": "2023-04-13T22:00:00Z",
      "title": "CVE-2023-1668"
    }
  ]
}