{"schemaVersion":3,"id":"USN-8124-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"bind9 vulnerabilities\n\nSamy Medjahed discovered that Bind incorrectly handled insecure\ndelegation validation. A remote attacker could possibly use this issue to\ncause excessive NSEC3 iterations, consuming CPU resources, and leading to a\ndenial of service. (CVE-2026-1519)\n\nVitaly Simonovich discovered that Bind incorrectly handled memory when\npreparing DNSSEC proofs of non-existence. A remote attacker could possibly\nuse this issue to cause memory consumption, leading to a denial of service.\nThis issue only affected Ubuntu 25.10. (CVE-2026-3104)\n\nVitaly Simonovich discovered that Bind incorrectly handled authenticated\nqueries containing TKEY records. A remote attacker could possibly use this\nissue to cause Bind to crash, resulting in a denial of service. This issue\nonly affected Ubuntu 25.10. (CVE-2026-3119)\n\nIt was discovered that Bind incorrectly handled DNS queries signed with\nSIG(0). A remote attacker could possibly use this issue to bypass ACLs.\nThis issue only affected Ubuntu 25.10. (CVE-2026-3591)","dates":{"published":"2026-03-25T16:32:48.000Z","modified":"2026-06-30T18:15:35.350Z","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":"< 1:9.18.39-0ubuntu0.22.04.3","noFixRecorded":false,"fixedIn":null},{"text":"< 1:9.18.39-0ubuntu0.24.04.3","noFixRecorded":false,"fixedIn":null},{"text":"< 1:9.20.11-1ubuntu2.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.18.39-0ubuntu0.22.04.3 | < 1:9.18.39-0ubuntu0.24.04.3 | < 1:9.20.11-1ubuntu2.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8124-1","label":"ubuntu.com/security/notices/USN-8124-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-1519","label":"ubuntu.com/security/CVE-2026-1519","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-3104","label":"ubuntu.com/security/CVE-2026-3104","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-3119","label":"ubuntu.com/security/CVE-2026-3119","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-3591","label":"ubuntu.com/security/CVE-2026-3591","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CVE-2026-1519","CVE-2026-3104","CVE-2026-3119","CVE-2026-3591"]},"timeline":[{"kind":"published","date":"2026-03-25T16:32:48.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-30T18:15:35.350Z","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":"2026-10-21T02:37:36.502Z","stale":false,"partial":false}}