{"id":"USN-4447-1","summary":"libssh vulnerability","details":"It was discovered that libssh incorrectly handled certain requests.\nAn attacker could possibly use this issue to cause a denial of service.\n","modified":"2026-02-10T04:41:54Z","published":"2020-08-04T13:31:06Z","related":["UBUNTU-CVE-2020-16135"],"upstream":["CVE-2020-16135","UBUNTU-CVE-2020-16135"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4447-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-16135"}],"affected":[{"package":{"name":"libssh","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.6.3-4.3ubuntu0.6?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.3-4.3ubuntu0.6"}]}],"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","0.6.3-4.3ubuntu0.2","0.6.3-4.3ubuntu0.5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.6.3-4.3ubuntu0.6","binary_name":"libssh-4"},{"binary_version":"0.6.3-4.3ubuntu0.6","binary_name":"libssh-dev"},{"binary_version":"0.6.3-4.3ubuntu0.6","binary_name":"libssh-gcrypt-4"},{"binary_version":"0.6.3-4.3ubuntu0.6","binary_name":"libssh-gcrypt-dev"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-16135","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4447-1.json"}},{"package":{"name":"libssh","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.8.0~20170825.94fa1e38-1ubuntu0.7?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.0~20170825.94fa1e38-1ubuntu0.7"}]}],"versions":["0.7.5-1","0.8.0~20170825.94fa1e38-1","0.8.0~20170825.94fa1e38-1build1","0.8.0~20170825.94fa1e38-1ubuntu0.1","0.8.0~20170825.94fa1e38-1ubuntu0.2","0.8.0~20170825.94fa1e38-1ubuntu0.5","0.8.0~20170825.94fa1e38-1ubuntu0.6"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.7","binary_name":"libssh-4"},{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.7","binary_name":"libssh-dev"},{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.7","binary_name":"libssh-gcrypt-4"},{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.7","binary_name":"libssh-gcrypt-dev"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-16135","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4447-1.json"}},{"package":{"name":"libssh","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.9.3-2ubuntu2.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.3-2ubuntu2.1"}]}],"versions":["0.9.0-1ubuntu1","0.9.0-1ubuntu4","0.9.0-1ubuntu5","0.9.3-2ubuntu1","0.9.3-2ubuntu2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.9.3-2ubuntu2.1","binary_name":"libssh-4"},{"binary_version":"0.9.3-2ubuntu2.1","binary_name":"libssh-dev"},{"binary_version":"0.9.3-2ubuntu2.1","binary_name":"libssh-gcrypt-4"},{"binary_version":"0.9.3-2ubuntu2.1","binary_name":"libssh-gcrypt-dev"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-16135","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4447-1.json"}}],"schema_version":"1.7.3"}