{"id":"UBUNTU-CVE-2018-16838","details":"A flaw was found in sssd Group Policy Objects implementation. When the GPO is not readable by SSSD due to a too strict permission settings on the server side, SSSD will allow all authenticated users to login instead of denying access.","modified":"2026-01-30T01:41:27.056641Z","published":"2019-03-25T18:29:00Z","related":["USN-5067-1"],"upstream":["CVE-2018-16838"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16838"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5067-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-16838"}],"affected":[{"package":{"name":"sssd","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/sssd@1.13.4-1ubuntu1.15?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.12.5-2","1.13.1-2","1.13.2-1","1.13.3-1","1.13.4-1","1.13.4-1ubuntu1","1.13.4-1ubuntu1.1","1.13.4-1ubuntu1.2","1.13.4-1ubuntu1.5","1.13.4-1ubuntu1.6","1.13.4-1ubuntu1.7","1.13.4-1ubuntu1.8","1.13.4-1ubuntu1.9","1.13.4-1ubuntu1.10","1.13.4-1ubuntu1.11","1.13.4-1ubuntu1.12","1.13.4-1ubuntu1.13","1.13.4-1ubuntu1.14","1.13.4-1ubuntu1.15"],"ecosystem_specific":{"binaries":[{"binary_name":"libipa-hbac-dev","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libipa-hbac0","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libnss-sss","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libpam-sss","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libsss-idmap-dev","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libsss-idmap0","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libsss-nss-idmap-dev","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libsss-nss-idmap0","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libsss-simpleifp-dev","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libsss-simpleifp0","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libsss-sudo","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libwbclient-sssd","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"libwbclient-sssd-dev","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"python-libipa-hbac","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"python-libsss-nss-idmap","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"python-sss","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"python3-libipa-hbac","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"python3-libsss-nss-idmap","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"python3-sss","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-ad","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-ad-common","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-common","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-dbus","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-ipa","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-krb5","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-krb5-common","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-ldap","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-proxy","binary_version":"1.13.4-1ubuntu1.15"},{"binary_name":"sssd-tools","binary_version":"1.13.4-1ubuntu1.15"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16838.json"}},{"package":{"name":"sssd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/sssd@1.16.1-1ubuntu1.8?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.1-1ubuntu1.8"}]}],"versions":["1.15.3-2ubuntu1","1.15.3-3ubuntu1","1.16.0-5ubuntu1","1.16.0-5ubuntu2","1.16.1-1ubuntu1","1.16.1-1ubuntu1.1","1.16.1-1ubuntu1.2","1.16.1-1ubuntu1.3","1.16.1-1ubuntu1.4","1.16.1-1ubuntu1.5","1.16.1-1ubuntu1.6","1.16.1-1ubuntu1.7"],"ecosystem_specific":{"availability":"No 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