{"id":"UBUNTU-CVE-2018-14345","details":"An issue was discovered in SDDM through 0.17.0. If configured with ReuseSession=true, the password is not checked for users with an already existing session. Any user with access to the system D-Bus can therefore unlock any graphical session. This is related to daemon/Display.cpp and helper/backend/PamBackend.cpp.","modified":"2025-10-24T04:47:08Z","published":"2018-07-17T14:29:00Z","upstream":["CVE-2018-14345"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-14345"},{"type":"REPORT","url":"https://bugzilla.suse.com/show_bug.cgi?id=1101450"},{"type":"REPORT","url":"https://github.com/sddm/sddm/commit/147cec383892d143b5e02daa70f1e7def50f5d98"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-14345"}],"affected":[{"package":{"name":"sddm","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/sddm@0.13.0-1ubuntu5?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.0-0ubuntu11","0.11.0-0ubuntu12","0.13.0-1ubuntu1","0.13.0-1ubuntu3","0.13.0-1ubuntu4","0.13.0-1ubuntu5"],"ecosystem_specific":{"binaries":[{"binary_version":"0.13.0-1ubuntu5","binary_name":"sddm"},{"binary_version":"0.13.0-1ubuntu5","binary_name":"sddm-theme-circles"},{"binary_version":"0.13.0-1ubuntu5","binary_name":"sddm-theme-elarun"},{"binary_version":"0.13.0-1ubuntu5","binary_name":"sddm-theme-maldives"},{"binary_version":"0.13.0-1ubuntu5","binary_name":"sddm-theme-maui"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-14345.json"}},{"package":{"name":"sddm","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/sddm@0.17.0-1ubuntu7?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.14.0-4ubuntu1","0.14.0-4ubuntu2","0.17.0-1ubuntu1","0.17.0-1ubuntu2","0.17.0-1ubuntu3","0.17.0-1ubuntu4","0.17.0-1ubuntu5","0.17.0-1ubuntu6","0.17.0-1ubuntu7"],"ecosystem_specific":{"binaries":[{"binary_version":"0.17.0-1ubuntu7","binary_name":"sddm"},{"binary_version":"0.17.0-1ubuntu7","binary_name":"sddm-theme-debian-elarun"},{"binary_version":"0.17.0-1ubuntu7","binary_name":"sddm-theme-debian-maui"},{"binary_version":"0.17.0-1ubuntu7","binary_name":"sddm-theme-elarun"},{"binary_version":"0.17.0-1ubuntu7","binary_name":"sddm-theme-maldives"},{"binary_version":"0.17.0-1ubuntu7","binary_name":"sddm-theme-maui"},{"binary_version":"0.17.0-1ubuntu7","binary_name":"sddm-theme-maya"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-14345.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}