{"schemaVersion":3,"id":"USN-3707-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"ntp vulnerabilities\n\nYihan Lian discovered that NTP incorrectly handled certain malformed mode 6\npackets. A remote attacker could possibly use this issue to cause ntpd to\ncrash, resulting in a denial of service. This issue only affected Ubuntu\n17.10 and Ubuntu 18.04 LTS. (CVE-2018-7182)\n\nMichael Macnair discovered that NTP incorrectly handled certain responses.\nA remote attacker could possibly use this issue to execute arbitrary code.\n(CVE-2018-7183)\n\nMiroslav Lichvar discovered that NTP incorrectly handled certain\nzero-origin timestamps. A remote attacker could possibly use this issue to\ncause a denial of service. This issue only affected Ubuntu 17.10 and Ubuntu\n18.04 LTS. (CVE-2018-7184)\n\nMiroslav Lichvar discovered that NTP incorrectly handled certain\nzero-origin timestamps. A remote attacker could possibly use this issue to\ncause a denial of service. (CVE-2018-7185)","dates":{"published":"2018-07-09T16:48:16.000Z","modified":"2026-02-10T04:41:23.000Z","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":"ntp","name":"ntp","label":"ntp","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/ntp","purlType":"deb","versions":[{"text":"< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.13","noFixRecorded":false,"fixedIn":null},{"text":"< 1:4.2.8p4+dfsg-3ubuntu5.9","noFixRecorded":false,"fixedIn":null},{"text":"< 1:4.2.8p10+dfsg-5ubuntu7.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.13 | < 1:4.2.8p4+dfsg-3ubuntu5.9 | < 1:4.2.8p10+dfsg-5ubuntu7.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3707-1","label":"ubuntu.com/security/notices/USN-3707-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-7182","label":"ubuntu.com/security/CVE-2018-7182","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-7183","label":"ubuntu.com/security/CVE-2018-7183","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-7184","label":"ubuntu.com/security/CVE-2018-7184","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-7185","label":"ubuntu.com/security/CVE-2018-7185","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2018-7182","CVE-2018-7183","CVE-2018-7184","CVE-2018-7185"],"downstream":[],"duplicates":[],"related":["CVE-2018-7182","CVE-2018-7183","CVE-2018-7184","CVE-2018-7185"]},"timeline":[{"kind":"published","date":"2018-07-09T16:48:16.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:41:23.000Z","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":"2026-10-19T04:41:23.057Z","stale":false,"partial":false}}