{
  "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" : "Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
      "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-2024-1674 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2024-1674.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2024-1674 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1674"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2021:0980 vom 2021-03-25",
      "url" : "https://access.redhat.com/errata/RHSA-2021:0980"
    }, {
      "category" : "external",
      "summary" : "Red Hat Customer Portal vom 2021-02-21",
      "url" : "https://access.redhat.com/errata/RHSA-2021:0618"
    }, {
      "category" : "external",
      "summary" : "Red Hat Customer Portal vom 2021-02-21",
      "url" : "https://access.redhat.com/errata/RHSA-2021:0619"
    }, {
      "category" : "external",
      "summary" : "Red Hat Customer Portal vom 2021-02-21",
      "url" : "https://access.redhat.com/errata/RHSA-2021:0620"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-0618 vom 2021-02-23",
      "url" : "https://linux.oracle.com/errata/ELSA-2021-0618.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:1465-1 vom 2021-05-04",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-May/008719.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:0772-1 vom 2021-03-12",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-March/008483.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-6901-1 vom 2024-07-18",
      "url" : "https://ubuntu.com/security/notices/USN-6901-1"
    } ],
    "source_lang" : "en-US",
    "title" : "Red Hat Enterprise Linux: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen",
    "tracking" : {
      "current_release_date" : "2024-07-17T22:00:00.000+00:00",
      "generator" : {
        "date" : "2024-08-15T18:11:36.188+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.3.5"
        }
      },
      "id" : "WID-SEC-W-2024-1674",
      "initial_release_date" : "2021-02-21T23:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2021-02-21T23:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2021-02-22T23:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2021-03-14T23:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-03-24T23:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      }, {
        "date" : "2021-05-03T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2024-07-17T22:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      } ],
      "status" : "final",
      "version" : "6"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "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" : [ {
        "branches" : [ {
          "category" : "product_version",
          "name" : "8",
          "product" : {
            "name" : "Red Hat Enterprise Linux 8",
            "product_id" : "T014111",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:redhat:enterprise_linux:8"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "8.1 Extended Update Support",
          "product" : {
            "name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
            "product_id" : "T018426",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:redhat:enterprise_linux:8.1_extended_update_support"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "8.2 Extended Update Support",
          "product" : {
            "name" : "Red Hat Enterprise Linux 8.2 Extended Update Support",
            "product_id" : "T018427",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:redhat:enterprise_linux:8.2_extended_update_support"
            }
          }
        } ],
        "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"
    }, {
      "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-2021-20230",
    "notes" : [ {
      "category" : "description",
      "text" : "In Red Hat Enterprise Linux existiert eine Schwachstelle. Die Schwachstelle tritt in der Komponente stunnel auf, wenn die Optionen \"redirect\" und \"verifyChain\" parallel verwendet werden. Ein entfernter anonymer Angreifer kann diese Schwachstelle ausnutzen, um Client-Zertifikate nicht ordnungsgemäß zu validieren und so Sicherheitsmaßnahmen zu umgehen."
    } ],
    "product_status" : {
      "known_affected" : [ "T002207", "T018426", "T000126", "T018427", "T004914", "T014111" ]
    },
    "release_date" : "2021-02-21T23:00:00.000+00:00",
    "title" : "CVE-2021-20230"
  } ]
}