{"schemaVersion":3,"id":"USN-5626-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"bind9 vulnerabilities\n\nYehuda Afek, Anat Bremler-Barr, and Shani Stajnrod discovered that Bind\nincorrectly handled large delegations. A remote attacker could possibly use\nthis issue to reduce performance, leading to a denial of service.\n(CVE-2022-2795)\n\nIt was discovered that Bind incorrectly handled statistics requests. A\nremote attacker could possibly use this issue to obtain sensitive memory\ncontents, or cause a denial of service. This issue only affected Ubuntu\n22.04 LTS. (CVE-2022-2881)\n\nIt was discovered that Bind incorrectly handled memory when processing\ncertain Diffie-Hellman key exchanges. A remote attacker could use this\nissue to consume resources, leading to a denial of service. This issue only\naffected Ubuntu 22.04 LTS. (CVE-2022-2906)\n\nMaksym Odinintsev discovered that Bind incorrectly handled answers from\ncache when configured with a zero stale-answer-timeout. A remote attacker\ncould possibly use this issue to cause Bind to crash, resulting in a denial\nof service. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-3080)\n\nIt was discovered that Bind incorrectly handled memory when processing\nECDSA DNSSEC verification. A remote attacker could use this issue to\nconsume resources, leading to a denial of service. This issue only affected\nUbuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2022-38177)\n\nIt was discovered that Bind incorrectly handled memory when processing\nEDDSA DNSSEC verification. A remote attacker could use this issue to\nconsume resources, leading to a denial of service. (CVE-2022-38178)","dates":{"published":"2022-09-21T11:39:24.000Z","modified":"2026-04-27T16:32:21.270Z","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":"< 1:9.11.3+dfsg-1ubuntu1.18","noFixRecorded":false,"fixedIn":null},{"text":"< 1:9.16.1-0ubuntu2.11","noFixRecorded":false,"fixedIn":null},{"text":"< 1:9.18.1-1ubuntu1.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.11.3+dfsg-1ubuntu1.18 | < 1:9.16.1-0ubuntu2.11 | < 1:9.18.1-1ubuntu1.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5626-1","label":"ubuntu.com/security/notices/USN-5626-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-2795","label":"ubuntu.com/security/CVE-2022-2795","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-2881","label":"ubuntu.com/security/CVE-2022-2881","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-2906","label":"ubuntu.com/security/CVE-2022-2906","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-3080","label":"ubuntu.com/security/CVE-2022-3080","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-38177","label":"ubuntu.com/security/CVE-2022-38177","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-38178","label":"ubuntu.com/security/CVE-2022-38178","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2022-2795","CVE-2022-2881","CVE-2022-2906","CVE-2022-3080","CVE-2022-38177","CVE-2022-38178"],"downstream":[],"duplicates":[],"related":["CVE-2022-2795","CVE-2022-2881","CVE-2022-2906","CVE-2022-3080","CVE-2022-38177","CVE-2022-38178"]},"timeline":[{"kind":"published","date":"2022-09-21T11:39:24.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T16:32:21.270Z","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":"2026-10-20T00:42:18.547Z","stale":false,"partial":false}}