CVE-2016-5427 (GCVE-0-2016-5427)

Vulnerability from cvelistv5 – Published: 2016-09-21 14:00 – Updated: 2024-08-06 01:01
VLAI
Summary
PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.
Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
Date Public
2016-09-09 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T01:01:00.502Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"
          },
          {
            "name": "1036761",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1036761"
          },
          {
            "name": "DSA-3664",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2016/dsa-3664"
          },
          {
            "name": "92917",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/92917"
          },
          {
            "name": "[oss-security] 20160909 PowerDNS Security Advisory 2016-01: Crafted queries can cause unexpected backend load",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-09-09T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-08-12T09:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"
        },
        {
          "name": "1036761",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1036761"
        },
        {
          "name": "DSA-3664",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2016/dsa-3664"
        },
        {
          "name": "92917",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/92917"
        },
        {
          "name": "[oss-security] 20160909 PowerDNS Security Advisory 2016-01: Crafted queries can cause unexpected backend load",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2016-5427",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3",
              "refsource": "CONFIRM",
              "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"
            },
            {
              "name": "1036761",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1036761"
            },
            {
              "name": "DSA-3664",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2016/dsa-3664"
            },
            {
              "name": "92917",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/92917"
            },
            {
              "name": "[oss-security] 20160909 PowerDNS Security Advisory 2016-01: Crafted queries can cause unexpected backend load",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"
            },
            {
              "name": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/",
              "refsource": "CONFIRM",
              "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-5427",
    "datePublished": "2016-09-21T14:00:00.000Z",
    "dateReserved": "2016-06-10T00:00:00.000Z",
    "dateUpdated": "2024-08-06T01:01:00.502Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2016-5427",
      "date": "2026-09-23",
      "epss": "0.62982",
      "percentile": "0.99163"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "3E45C5C3-4B73-4FD1-85E7-7C3A9DA5E10B",
                  "versionEndIncluding": "3.4.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query."
        },
        {
          "lang": "es",
          "value": "PowerDNS (tambi\u00e9n conocido como pdns) Authoritative Server en versiones anteriores a 3.4.10 no maneja adecuadamente unas etiquetas del interior . (dot), lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de CPU backend) a trav\u00e9s de una consulta DNS manipulada."
        }
      ],
      "id": "CVE-2016-5427",
      "lastModified": "2024-11-21T02:54:17.603",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "PARTIAL",
              "baseScore": 5.0,
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
              "version": "2.0"
            },
            "exploitabilityScore": 10.0,
            "impactScore": 2.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV30": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.0"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2016-09-21T14:25:15.580",
      "references": [
        {
          "source": "secalert@redhat.com",
          "url": "http://www.debian.org/security/2016/dsa-3664"
        },
        {
          "source": "secalert@redhat.com",
          "tags": [
            "Release Notes"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.securityfocus.com/bid/92917"
        },
        {
          "source": "secalert@redhat.com",
          "url": "http://www.securitytracker.com/id/1036761"
        },
        {
          "source": "secalert@redhat.com",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"
        },
        {
          "source": "secalert@redhat.com",
          "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.debian.org/security/2016/dsa-3664"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Release Notes"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.securityfocus.com/bid/92917"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.securitytracker.com/id/1036761"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"
        }
      ],
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-399"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3E45C5C3-4B73-4FD1-85E7-7C3A9DA5E10B",
                    "versionEndIncluding": "3.4.9",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query."
          },
          {
            "lang": "es",
            "value": "PowerDNS (tambi\u00e9n conocido como pdns) Authoritative Server en versiones anteriores a 3.4.10 no maneja adecuadamente unas etiquetas del interior . (dot), lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de CPU backend) a trav\u00e9s de una consulta DNS manipulada."
          }
        ],
        "id": "CVE-2016-5427",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-09-21T14:25:15.580",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://www.debian.org/security/2016/dsa-3664"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Release Notes"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.securityfocus.com/bid/92917"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.securitytracker.com/id/1036761"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.debian.org/security/2016/dsa-3664"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/92917"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securitytracker.com/id/1036761"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-399"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-11-21T11:59:21+00:00",
      "cve": "CVE-2016-5427",
      "id": "CVE-2016-5427",
      "initial_release_date": "2016-09-09T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "pdns: Crafted queries can cause unexpected backend load",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-5427.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-05-09T03:03:13Z",
      "cve": "CVE-2016-5427",
      "id": "CVE-2016-5427",
      "initial_release_date": "2023-02-15T05:00:37Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-5427",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-5427.json",
      "version": "6"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.