CVE ID:	CVE-2014-0979
Description:	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.
Test IDs:	1.3.6.1.4.1.25623.1.1.10.2014.0026   1.3.6.1.4.1.25623.1.0.867500   1.3.6.1.4.1.25623.1.0.867487
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2014-0979 BugTraq ID: 64679 http://www.securityfocus.com/bid/64679 http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html http://www.openwall.com/lists/oss-security/2014/01/07/15 http://secunia.com/advisories/56211 http://secunia.com/advisories/56423 SuSE Security Announcement: openSUSE-SU-2014:0071 (Google Search) http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html