{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T05:40:51.365Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "105055",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/105055"
          },
          {
            "name": "[debian-lts-announce] 20180830 [SECURITY] [DLA 1485-1] bind9 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html"
          },
          {
            "name": "RHSA-2018:2570",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2570"
          },
          {
            "name": "RHSA-2018:2571",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2571"
          },
          {
            "name": "USN-3769-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3769-2/"
          },
          {
            "name": "1041436",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1041436"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180926-0003/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.isc.org/docs/aa-01639"
          },
          {
            "name": "USN-3769-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3769-1/"
          },
          {
            "name": "GLSA-201903-13",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201903-13"
          },
          {
            "name": "openSUSE-SU-2019:1533",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html"
          },
          {
            "name": "openSUSE-SU-2019:1532",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03927en_us"
          },
          {
            "name": "[debian-lts-announce] 20211102 [SECURITY] [DLA 2807-1] bind9 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "BIND 9",
          "vendor": "ISC",
          "versions": [
            {
              "status": "affected",
              "version": "BIND 9  9.7.0-\u003e9.8.8, 9.9.0-\u003e9.9.13, 9.10.0-\u003e9.10.8, 9.11.0-\u003e9.11.4, 9.12.0-\u003e9.12.2, 9.13.0-\u003e9.13.2"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "Only servers which have explicitly enabled the \"deny-answer-aliases\" feature are at risk and disabling the feature prevents exploitation."
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ISC would like to thank Tony Finch of the University of Cambridge for reporting this issue."
        }
      ],
      "datePublic": "2018-08-08T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "\"deny-answer-aliases\" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0-\u003e9.8.8, 9.9.0-\u003e9.9.13, 9.10.0-\u003e9.10.8, 9.11.0-\u003e9.11.4, 9.12.0-\u003e9.12.2, 9.13.0-\u003e9.13.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Accidental or deliberate triggering of this defect will cause a REQUIRE assertion failure in named, causing the named process to stop execution and resulting in denial of service to clients.",
              "lang": "en",
              "type": "text"
            },
            {
              "description": "Accidental or deliberate triggering of this defect will cause a REQUIRE assertion failure in named, causing the named process to stop execution and resulting in denial of service to clients.  Only servers which have explicitly enabled the \"deny-answer-aliases\" feature are at risk and disabling the feature prevents exploitation.",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-11-02T03:06:16.000Z",
        "orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
        "shortName": "isc"
      },
      "references": [
        {
          "name": "105055",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/105055"
        },
        {
          "name": "[debian-lts-announce] 20180830 [SECURITY] [DLA 1485-1] bind9 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html"
        },
        {
          "name": "RHSA-2018:2570",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:2570"
        },
        {
          "name": "RHSA-2018:2571",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:2571"
        },
        {
          "name": "USN-3769-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3769-2/"
        },
        {
          "name": "1041436",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1041436"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20180926-0003/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.isc.org/docs/aa-01639"
        },
        {
          "name": "USN-3769-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3769-1/"
        },
        {
          "name": "GLSA-201903-13",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201903-13"
        },
        {
          "name": "openSUSE-SU-2019:1533",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html"
        },
        {
          "name": "openSUSE-SU-2019:1532",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03927en_us"
        },
        {
          "name": "[debian-lts-announce] 20211102 [SECURITY] [DLA 2807-1] bind9 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Most operators will not need to make any changes unless they are using the \"deny-answer-aliases\" feature (which is described in the BIND 9 Adminstrator Reference Manual section 6.2.)  \"deny-answer-aliases\" is off by default; only configurations which explicitly enable it can be affected by this defect.\n\nIf you are using \"deny-answer-aliases\", upgrade to the patched release most closely related to your current version of BIND.\n\n    9.9.13-P1\n    9.10.8-P1\n    9.11.4-P1\n    9.12.2-P1\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    9.11.3-S3"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "A flaw in the \"deny-answer-aliases\" feature can cause an assertion failure in named",
      "workarounds": [
        {
          "lang": "en",
          "value": "This vulnerability can be avoided by disabling the \"deny-answer-aliases\" feature if it is in use."
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-officer@isc.org",
          "DATE_PUBLIC": "2018-08-08T08:00:00.000Z",
          "ID": "CVE-2018-5740",
          "STATE": "PUBLIC",
          "TITLE": "A flaw in the \"deny-answer-aliases\" feature can cause an assertion failure in named"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "BIND 9",
                      "version": {
                        "version_data": [
                          {
                            "version_name": "BIND 9",
                            "version_value": "9.7.0-\u003e9.8.8, 9.9.0-\u003e9.9.13, 9.10.0-\u003e9.10.8, 9.11.0-\u003e9.11.4, 9.12.0-\u003e9.12.2, 9.13.0-\u003e9.13.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "ISC"
              }
            ]
          }
        },
        "configuration": [
          {
            "lang": "en",
            "value": "Only servers which have explicitly enabled the \"deny-answer-aliases\" feature are at risk and disabling the feature prevents exploitation."
          }
        ],
        "credit": [
          {
            "lang": "eng",
            "value": "ISC would like to thank Tony Finch of the University of Cambridge for reporting this issue."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "\"deny-answer-aliases\" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0-\u003e9.8.8, 9.9.0-\u003e9.9.13, 9.10.0-\u003e9.10.8, 9.11.0-\u003e9.11.4, 9.12.0-\u003e9.12.2, 9.13.0-\u003e9.13.2."
            }
          ]
        },
        "impact": {
          "cvss": {
            "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"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Accidental or deliberate triggering of this defect will cause a REQUIRE assertion failure in named, causing the named process to stop execution and resulting in denial of service to clients."
                },
                {
                  "lang": "eng",
                  "value": "Accidental or deliberate triggering of this defect will cause a REQUIRE assertion failure in named, causing the named process to stop execution and resulting in denial of service to clients.  Only servers which have explicitly enabled the \"deny-answer-aliases\" feature are at risk and disabling the feature prevents exploitation."
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "105055",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/105055"
            },
            {
              "name": "[debian-lts-announce] 20180830 [SECURITY] [DLA 1485-1] bind9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html"
            },
            {
              "name": "RHSA-2018:2570",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:2570"
            },
            {
              "name": "RHSA-2018:2571",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:2571"
            },
            {
              "name": "USN-3769-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3769-2/"
            },
            {
              "name": "1041436",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1041436"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20180926-0003/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20180926-0003/"
            },
            {
              "name": "https://kb.isc.org/docs/aa-01639",
              "refsource": "CONFIRM",
              "url": "https://kb.isc.org/docs/aa-01639"
            },
            {
              "name": "USN-3769-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3769-1/"
            },
            {
              "name": "GLSA-201903-13",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/201903-13"
            },
            {
              "name": "openSUSE-SU-2019:1533",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html"
            },
            {
              "name": "openSUSE-SU-2019:1532",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html"
            },
            {
              "name": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03927en_us",
              "refsource": "CONFIRM",
              "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03927en_us"
            },
            {
              "name": "[debian-lts-announce] 20211102 [SECURITY] [DLA 2807-1] bind9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Most operators will not need to make any changes unless they are using the \"deny-answer-aliases\" feature (which is described in the BIND 9 Adminstrator Reference Manual section 6.2.)  \"deny-answer-aliases\" is off by default; only configurations which explicitly enable it can be affected by this defect.\n\nIf you are using \"deny-answer-aliases\", upgrade to the patched release most closely related to your current version of BIND.\n\n    9.9.13-P1\n    9.10.8-P1\n    9.11.4-P1\n    9.12.2-P1\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    9.11.3-S3"
          }
        ],
        "source": {
          "discovery": "EXTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "This vulnerability can be avoided by disabling the \"deny-answer-aliases\" feature if it is in use."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2018-5740",
    "datePublished": "2019-01-16T20:00:00.000Z",
    "dateReserved": "2018-01-17T00:00:00.000Z",
    "dateUpdated": "2024-09-16T17:58:43.029Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}