{"schemaVersion":3,"id":"USN-6390-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"bind9 vulnerabilities\n\nIt was discovered that Bind incorrectly handled certain control channel\nmessages. A remote attacker with access to the control channel could\npossibly use this issue to cause Bind to crash, resulting in a denial of\nservice. (CVE-2023-3341)\n\nRobert Story discovered that Bind incorrectly handled certain DNS-over-TLS\nqueries. A remote attacker could possibly use this issue to cause Bind to\ncrash, resulting in a denial of service. This issue only affected Ubuntu\n22.04 LTS, and Ubuntu 23.04. (CVE-2023-4236)","dates":{"published":"2023-09-20T14:07:21.000Z","modified":"2026-04-22T10:39:27.132Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"bind9","name":"bind9","label":"bind9","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/bind9","purlType":"deb","versions":[{"text":"< 1:9.16.1-0ubuntu2.16","noFixRecorded":false,"fixedIn":null},{"text":"< 1:9.18.12-0ubuntu0.22.04.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.16.1-0ubuntu2.16 | < 1:9.18.12-0ubuntu0.22.04.3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6390-1","label":"ubuntu.com/security/notices/USN-6390-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-3341","label":"ubuntu.com/security/CVE-2023-3341","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4236","label":"ubuntu.com/security/CVE-2023-4236","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-3341","CVE-2023-4236"],"downstream":[],"duplicates":[],"related":["CVE-2023-3341","CVE-2023-4236"]},"timeline":[{"kind":"published","date":"2023-09-20T14:07:21.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:39:27.132Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T04:10:36.730Z","stale":false,"partial":false}}