{"id":"CVE-2014-0979","details":"The start_authentication function in lightdm-gtk-greeter.c in LightDM GTK+ Greeter before 1.7.1 does not properly handle the return value from the lightdm_greeter_get_authentication_user function, which allows local users to cause a denial of service (NULL pointer dereference) via an empty username.","modified":"2026-04-16T06:24:47.979194301Z","published":"2014-01-23T01:55:04Z","references":[{"type":"ADVISORY","url":"http://secunia.com/advisories/56211"},{"type":"ADVISORY","url":"http://secunia.com/advisories/56423"},{"type":"REPORT","url":"https://bugzilla.novell.com/show_bug.cgi?id=857303"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2014/01/07/15"},{"type":"WEB","url":"http://www.securityfocus.com/bid/64679"},{"type":"WEB","url":"https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449"}],"schema_version":"1.7.5"}