{"id":"CVE-2018-5736","details":"An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.","modified":"2026-04-10T04:10:58.353585Z","published":"2019-01-16T20:29:00.830Z","related":["CGA-pxfg-jcfx-2cp2"],"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20180926-0004/"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/104386"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1040941"},{"type":"ADVISORY","url":"https://kb.isc.org/docs/aa-01602"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.isc.org/isc-projects/bind9","events":[{"introduced":"0"},{"last_affected":"71a40862c0be867999867cd99e21c2266a5e452b"},{"introduced":"0"},{"last_affected":"b2307b25465c16d37ff6de22438a2d214287417c"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"9.12.0"},{"introduced":"0"},{"last_affected":"9.12.1"}]}}],"versions":["v9.10.0a1","v9.10.0a2","v9.10.0b1","v9.10.0b2","v9.10.0rc1","v9.11.0a1","v9.11.0a2","v9.11.0a3","v9.12.0","v9.12.0a1","v9.12.0b1","v9.12.0b2","v9.12.0rc1","v9.12.0rc2","v9.12.0rc3","v9.12.1","v9.12.1b1","v9.12.1rc1","v9.5.0a1","v9.5.0a2","v9.5.0a3","v9.5.0a4","v9.5.0a5","v9.5.0a6","v9.7.0a1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-5736.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}