{"id":"USN-2912-1","summary":"libssh vulnerabilities","details":"Mariusz 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)\n","modified":"2026-04-22T09:21:53.969880Z","published":"2016-02-23T14:14:59Z","related":["UBUNTU-CVE-2015-3146","UBUNTU-CVE-2016-0739"],"upstream":["CVE-2015-3146","CVE-2016-0739","UBUNTU-CVE-2015-3146","UBUNTU-CVE-2016-0739"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2912-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-3146"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-0739"}],"affected":[{"package":{"name":"libssh","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.6.1-0ubuntu3.3?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.1-0ubuntu3.3"}]}],"versions":["0.5.4-1","0.6.1-0ubuntu2","0.6.1-0ubuntu3","0.6.1-0ubuntu3.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssh-4","binary_version":"0.6.1-0ubuntu3.3"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2015-3146"},{"severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2016-0739"}],"ecosystem":"Ubuntu:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-2912-1.json"}}],"schema_version":"1.7.5"}