{"id":"USN-3795-3","summary":"libssh regression","details":"USN-3795-1 and USN-3795-2 fixed a vulnerability in libssh. The upstream\nfix introduced a regression. This update fixes the problem.\n\nOriginal advisory details:\n\n Peter Winter-Smith discovered that libssh incorrectly handled\n authentication when being used as a server. A remote attacker could use\n this issue to bypass authentication without any credentials.\n","modified":"2026-04-22T09:51:35.286025Z","published":"2018-11-29T14:42:17Z","references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3795-3"},{"type":"REPORT","url":"https://launchpad.net/bugs/1805348"}],"affected":[{"package":{"name":"libssh","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.6.1-0ubuntu3.5?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.1-0ubuntu3.5"}]}],"versions":["0.5.4-1","0.6.1-0ubuntu2","0.6.1-0ubuntu3","0.6.1-0ubuntu3.1","0.6.1-0ubuntu3.3","0.6.1-0ubuntu3.4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.6.1-0ubuntu3.5","binary_name":"libssh-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-3.json","cves_map":{"ecosystem":"Ubuntu:14.04:LTS","cves":[]}}},{"package":{"name":"libssh","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.6.3-4.3ubuntu0.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.3-4.3ubuntu0.2"}]}],"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","0.6.3-4.3ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.6.3-4.3ubuntu0.2","binary_name":"libssh-4"},{"binary_version":"0.6.3-4.3ubuntu0.2","binary_name":"libssh-gcrypt-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-3.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[]}}},{"package":{"name":"libssh","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.8.0~20170825.94fa1e38-1ubuntu0.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.0~20170825.94fa1e38-1ubuntu0.2"}]}],"versions":["0.7.5-1","0.8.0~20170825.94fa1e38-1","0.8.0~20170825.94fa1e38-1build1","0.8.0~20170825.94fa1e38-1ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.2","binary_name":"libssh-4"},{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.2","binary_name":"libssh-gcrypt-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-3.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[]}}}],"schema_version":"1.7.5"}