{
  "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" : "OpenLDAP ist eine frei verfügbare Implementierung des Verzeichnisdienstes LDAP.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenLDAP ausnutzen, um einen Denial of Service Angriff durchzuführen.",
      "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 für Sicherheit in der Informationstechnik",
      "namespace" : "https://www.bsi.bund.de"
    },
    "references" : [ {
      "category" : "self",
      "summary" : "WID-SEC-W-2023-1126 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2023-1126.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2023-1126 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1126"
    }, {
      "category" : "external",
      "summary" : "OpenLDAP BugBounty vom 2021-02-14",
      "url" : "https://bugs.openldap.org/show_bug.cgi?id=9454"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DSA-4860 vom 2021-02-22",
      "url" : "http://www.debian.org/security/2021/dsa-4860"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-2574 vom 2021-02-20",
      "url" : "https://lists.debian.org/debian-lts-announce/2021/02/msg00035.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-4744-1 vom 2021-02-22",
      "url" : "https://ubuntu.com/security/notices/USN-4744-1"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:0693-1 vom 2021-03-03",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-March/008428.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:0692-1 vom 2021-03-03",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-March/008431.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:0723-1 vom 2021-03-08",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-March/008438.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2021:14700-1 vom 2021-04-16",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008644.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALAS-2023-2033 vom 2023-05-03",
      "url" : "https://alas.aws.amazon.com/AL2/ALAS-2023-2033.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALAS-2023-1741 vom 2023-05-04",
      "url" : "https://alas.aws.amazon.com/ALAS-2023-1741.html"
    }, {
      "category" : "external",
      "summary" : "Splunk Security Advisory SVD-2024-1012 vom 2024-10-14",
      "url" : "https://advisory.splunk.com//advisories/SVD-2024-1012"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-7713-1 vom 2025-08-25",
      "url" : "https://ubuntu.com/security/notices/USN-7713-1"
    } ],
    "source_lang" : "en-US",
    "title" : "OpenLDAP: Schwachstelle ermöglicht Denial of Service",
    "tracking" : {
      "current_release_date" : "2025-08-24T22:00:00.000+00:00",
      "generator" : {
        "date" : "2025-08-25T09:05:25.084+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.4.0"
        }
      },
      "id" : "WID-SEC-W-2023-1126",
      "initial_release_date" : "2021-02-14T23:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2021-02-14T23:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2021-02-21T23:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2021-02-22T23:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2021-03-03T23:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-03-08T23:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2021-04-18T22:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2023-05-02T22:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2023-05-04T22:00:00.000+00:00",
        "number" : "8",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2024-10-14T22:00:00.000+00:00",
        "number" : "9",
        "summary" : "Neue Updates von Splunk-SVD aufgenommen"
      }, {
        "date" : "2025-08-24T22:00:00.000+00:00",
        "number" : "10",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      } ],
      "status" : "final",
      "version" : "10"
    }
  },
  "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" : "Debian Linux",
        "product" : {
          "name" : "Debian Linux",
          "product_id" : "2951",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:debian:debian_linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Debian"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<=2.4.57",
          "product" : {
            "name" : "Open Source OpenLDAP <=2.4.57",
            "product_id" : "T018354"
          }
        }, {
          "category" : "product_version_range",
          "name" : "<=2.4.57",
          "product" : {
            "name" : "Open Source OpenLDAP <=2.4.57",
            "product_id" : "T018354-fixed"
          }
        }, {
          "category" : "product_version_range",
          "name" : "<=2.5.1alpha",
          "product" : {
            "name" : "Open Source OpenLDAP <=2.5.1alpha",
            "product_id" : "T018355"
          }
        }, {
          "category" : "product_version_range",
          "name" : "<=2.5.1alpha",
          "product" : {
            "name" : "Open Source OpenLDAP <=2.5.1alpha",
            "product_id" : "T018355-fixed"
          }
        } ],
        "category" : "product_name",
        "name" : "OpenLDAP"
      } ],
      "category" : "vendor",
      "name" : "Open Source"
    }, {
      "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" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<9.3.1",
          "product" : {
            "name" : "Splunk Splunk Enterprise <9.3.1",
            "product_id" : "T038314"
          }
        }, {
          "category" : "product_version",
          "name" : "9.3.1",
          "product" : {
            "name" : "Splunk Splunk Enterprise 9.3.1",
            "product_id" : "T038314-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:splunk:splunk:9.3.1"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<9.2.3",
          "product" : {
            "name" : "Splunk Splunk Enterprise <9.2.3",
            "product_id" : "T038315"
          }
        }, {
          "category" : "product_version",
          "name" : "9.2.3",
          "product" : {
            "name" : "Splunk Splunk Enterprise 9.2.3",
            "product_id" : "T038315-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:splunk:splunk:9.2.3"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<9.1.6",
          "product" : {
            "name" : "Splunk Splunk Enterprise <9.1.6",
            "product_id" : "T038316"
          }
        }, {
          "category" : "product_version",
          "name" : "9.1.6",
          "product" : {
            "name" : "Splunk Splunk Enterprise 9.1.6",
            "product_id" : "T038316-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:splunk:splunk:9.1.6"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Splunk Enterprise"
      } ],
      "category" : "vendor",
      "name" : "Splunk"
    }, {
      "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-2021-27212",
    "product_status" : {
      "known_affected" : [ "2951", "T002207", "T000126", "T038314", "398363", "T038315", "T038316" ],
      "last_affected" : [ "T018355", "T018354" ]
    },
    "release_date" : "2021-02-14T23:00:00.000+00:00",
    "title" : "CVE-2021-27212"
  } ]
}