{"id":"CVE-2019-6468","details":"In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure. Versions affected: BIND Supported Preview Edition version 9.10.5-S1 -\u003e 9.11.5-S5. ONLY BIND Supported Preview Edition releases are affected.","modified":"2026-09-13T11:45:11.030930356Z","published":"2019-10-09T16:15:16.687Z","database_specific":{"unresolved_ranges":[{"source":"CPE_STRING","vendor_product":"isc:bind","cpes":["cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*"],"extracted_events":[{"introduced":"9.11.5-s5"},{"last_affected":"9.11.5-s5"},{"introduced":"9.11.5-s5"},{"last_affected":"9.11.5-s5"}]}]},"references":[{"type":"ADVISORY","url":"https://kb.isc.org/docs/cve-2019-6468"},{"type":"ADVISORY","url":"https://www.synology.com/security/advisory/Synology_SA_19_20"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/isc-projects/bind9","events":[{"introduced":"341e64a2de908ceec50ed46d243bf3402342735c"},{"last_affected":"341e64a2de908ceec50ed46d243bf3402342735c"}],"database_specific":{"cpe":"cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*","extracted_events":[{"introduced":"9.10.5-s1"},{"last_affected":"9.10.5-s1"}],"source":"CPE_STRING"}}],"versions":["9.10.5-s1","v9.10.5b1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6468.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.isc.org/isc-projects/bind9","events":[{"introduced":"341e64a2de908ceec50ed46d243bf3402342735c"},{"last_affected":"341e64a2de908ceec50ed46d243bf3402342735c"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*","extracted_events":[{"introduced":"9.10.5-s1"},{"last_affected":"9.10.5-s1"}]}}],"versions":["9.10.5-s1","v9.10.5b1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6468.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}