{"schemaVersion":3,"id":"USN-2912-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"libssh vulnerabilities\n\nMariusz Ziulek discovered that libssh incorrectly handled certain packets.\nA remote attacker could possibly use this issue to cause libssh to crash,\nresulting in a denial of service.\n(CVE-2015-3146)\n\nAris Adamantiadis discovered that libssh incorrectly generated ephemeral\nsecret keys of 128 bits instead of the recommended 1024 or 2048 bits when\nusing the diffie-hellman-group1 and diffie-hellman-group14 methods. If a\nremote attacker were able to perform a machine-in-the-middle attack, this flaw\ncould be exploited to view sensitive information. (CVE-2016-0739)","dates":{"published":"2016-02-23T14:14:59.000Z","modified":"2026-04-22T09:21:53.969Z","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":"libssh","name":"libssh","label":"libssh","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libssh","purlType":"deb","versions":[{"text":"< 0.6.1-0ubuntu3.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.6.1-0ubuntu3.3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-2912-1","label":"ubuntu.com/security/notices/USN-2912-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2015-3146","label":"ubuntu.com/security/CVE-2015-3146","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-0739","label":"ubuntu.com/security/CVE-2016-0739","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2015-3146","CVE-2016-0739"],"downstream":[],"duplicates":[],"related":["CVE-2015-3146","CVE-2016-0739"]},"timeline":[{"kind":"published","date":"2016-02-23T14:14:59.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T09:21:53.969Z","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":"2026-10-19T23:49:27.837Z","stale":false,"partial":false}}