{"id":"USN-3795-1","summary":"libssh vulnerability","details":"Peter Winter-Smith discovered that libssh incorrectly handled\nauthentication when being used as a server. A remote attacker could use\nthis issue to bypass authentication without any credentials.\n","modified":"2026-04-22T09:51:05.804340Z","published":"2018-10-17T12:53:51Z","related":["UBUNTU-CVE-2018-10933"],"upstream":["CVE-2018-10933","UBUNTU-CVE-2018-10933"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3795-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-10933"}],"affected":[{"package":{"name":"libssh","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.6.1-0ubuntu3.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.1-0ubuntu3.4"}]}],"versions":["0.5.4-1","0.6.1-0ubuntu2","0.6.1-0ubuntu3","0.6.1-0ubuntu3.1","0.6.1-0ubuntu3.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssh-4","binary_version":"0.6.1-0ubuntu3.4"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-10933","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-1.json"}},{"package":{"name":"libssh","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.6.3-4.3ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.3-4.3ubuntu0.1"}]}],"versions":["0.6.3-3ubuntu3","0.6.3-4.1","0.6.3-4.2","0.6.3-4.2ubuntu1","0.6.3-4.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssh-4","binary_version":"0.6.3-4.3ubuntu0.1"},{"binary_name":"libssh-gcrypt-4","binary_version":"0.6.3-4.3ubuntu0.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-10933","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-1.json"}},{"package":{"name":"libssh","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.8.0~20170825.94fa1e38-1ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.0~20170825.94fa1e38-1ubuntu0.1"}]}],"versions":["0.7.5-1","0.8.0~20170825.94fa1e38-1","0.8.0~20170825.94fa1e38-1build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssh-4","binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.1"},{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.1","binary_name":"libssh-gcrypt-4"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-10933","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-1.json"}}],"schema_version":"1.7.5"}