{"id":"UBUNTU-CVE-2015-0856","details":"daemon/Greeter.cpp in sddm before 0.13.0 does not properly disable the KDE crash handler, which allows local users to gain privileges by crashing a greeter when using certain themes, as demonstrated by the plasma-workspace breeze theme.","modified":"2025-07-16T08:11:21.155630Z","published":"2015-11-24T20:59:00Z","withdrawn":"2025-07-18T16:43:09Z","upstream":["CVE-2015-0856"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-0856"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-0856"}],"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"},{"fixed":"0.13.0-1ubuntu5"}]}],"versions":["0.11.0-0ubuntu11","0.11.0-0ubuntu12","0.13.0-1ubuntu1","0.13.0-1ubuntu3","0.13.0-1ubuntu4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"sddm","binary_version":"0.13.0-1ubuntu5"},{"binary_name":"sddm-dbg","binary_version":"0.13.0-1ubuntu5"},{"binary_name":"sddm-dbgsym","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","binary_version":"0.13.0-1ubuntu5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-0856.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"low"}]}