{"schemaVersion":3,"id":"USN-3426-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"samba vulnerabilities\n\nStefan Metzmacher discovered that Samba incorrectly enforced SMB signing in\ncertain situations. A remote attacker could use this issue to perform a\nmachine-in-the-middle attack. (CVE-2017-12150)\n\nStefan Metzmacher discovered that Samba incorrectly handled encryption\nacross DFS redirects. A remote attacker could use this issue to perform a\nmachine-in-the-middle attack. (CVE-2017-12151)\n\nYihan Lian and Zhibin Hu discovered that Samba incorrectly handled memory\nwhen SMB1 is being used. A remote attacker could possibly use this issue to\nobtain server memory contents. (CVE-2017-12163)","dates":{"published":"2017-09-21T16:45:49.000Z","modified":"2026-04-22T09:38:39.905Z","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":"samba","name":"samba","label":"samba","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/samba","purlType":"deb","versions":[{"text":"< 2:4.3.11+dfsg-0ubuntu0.14.04.12","noFixRecorded":false,"fixedIn":null},{"text":"< 2:4.3.11+dfsg-0ubuntu0.16.04.11","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2:4.3.11+dfsg-0ubuntu0.14.04.12 | < 2:4.3.11+dfsg-0ubuntu0.16.04.11","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"samba","label":"Samba","category":"server-app"}},"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3426-1","label":"ubuntu.com/security/notices/USN-3426-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-12150","label":"ubuntu.com/security/CVE-2017-12150","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-12151","label":"ubuntu.com/security/CVE-2017-12151","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-12163","label":"ubuntu.com/security/CVE-2017-12163","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2017-12150","CVE-2017-12151","CVE-2017-12163"],"downstream":[],"duplicates":[],"related":["CVE-2017-12150","CVE-2017-12151","CVE-2017-12163"]},"timeline":[{"kind":"published","date":"2017-09-21T16:45:49.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T09:38:39.905Z","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":"2026-10-20T03:37:11.042Z","stale":false,"partial":false}}