{"schemaVersion":3,"id":"USN-2567-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"ntp vulnerabilities\n\nMiroslav Lichvar discovered that NTP incorrectly validated MAC fields. A\nremote attacker could possibly use this issue to bypass authentication and\nspoof packets. (CVE-2015-1798)\n\nMiroslav Lichvar discovered that NTP incorrectly handled certain invalid\npackets. A remote attacker could possibly use this issue to cause a denial\nof service. (CVE-2015-1799)\n\nJuergen Perlinger discovered that NTP incorrectly generated MD5 keys on\nbig-endian platforms. This issue could either cause ntp-keygen to hang, or\ncould result in non-random keys. (CVE number pending)","dates":{"published":"2015-04-13T15:13:12.000Z","modified":"2026-02-10T04:40:53.000Z","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-3ubuntu2.14.04.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-2567-1","label":"ubuntu.com/security/notices/USN-2567-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2015-1798","label":"ubuntu.com/security/CVE-2015-1798","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2015-1799","label":"ubuntu.com/security/CVE-2015-1799","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2015-1798","CVE-2015-1799"],"downstream":[],"duplicates":[],"related":["CVE-2015-1798","CVE-2015-1799","CVE-2015-3405"]},"timeline":[{"kind":"published","date":"2015-04-13T15:13:12.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:40:53.000Z","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":"2026-10-20T05:36:26.256Z","stale":false,"partial":false}}