{"cve":{"cve_id":"CVE-2018-5740","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.59353,"epss_percentile":0.98996,"epss_as_of":"2026-06-23","description":"\"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->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2.","published_at":"2019-01-16T20:00:00Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["http://www.securityfocus.com/bid/105055","https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html","https://access.redhat.com/errata/RHSA-2018:2570","https://access.redhat.com/errata/RHSA-2018:2571","https://usn.ubuntu.com/3769-2/","http://www.securitytracker.com/id/1041436","https://security.netapp.com/advisory/ntap-20180926-0003/","https://kb.isc.org/docs/aa-01639","https://usn.ubuntu.com/3769-1/","https://security.gentoo.org/glsa/201903-13","http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html","http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html","https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_us","https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:11:31.484166Z"},"effective_severity":"HIGH","badges":["epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind-9","product_name":"BIND 9","version_start":"BIND 9  9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2","version_start_inclusive":true,"version_end":"BIND 9  9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2","version_end_inclusive":true,"cpe23_uri":"cve5:isc:bind-9:BIND 9  9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2:BIND 9  9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2"}],"exploit_refs":[],"news":[],"references":[{"url":"http://www.securityfocus.com/bid/105055","source_type":"MISC","tags":[]},{"url":"https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://access.redhat.com/errata/RHSA-2018:2570","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2018:2571","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://usn.ubuntu.com/3769-2/","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.securitytracker.com/id/1041436","source_type":"MISC","tags":[]},{"url":"https://security.netapp.com/advisory/ntap-20180926-0003/","source_type":"MISC","tags":[]},{"url":"https://kb.isc.org/docs/aa-01639","source_type":"MISC","tags":[]},{"url":"https://usn.ubuntu.com/3769-1/","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://security.gentoo.org/glsa/201903-13","source_type":"MISC","tags":[]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_us","source_type":"MISC","tags":[]},{"url":"https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html","source_type":"MAILING_LIST","tags":["mailing-list"]}],"timeline":[{"type":"published","at":"2019-01-16T20:00:00Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T16:58:37.484515Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T16:58:37.484515Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T16:58:37.484515Z","label":"CVSS score revised","source":"cvelistv5"}]}