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.
                
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Affected Vendors & Products
References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: mitre
Published: 2014-01-23T01:00:00
Updated: 2024-08-06T09:34:40.438Z
Reserved: 2014-01-07T00:00:00
Link: CVE-2014-0979
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Deferred
Published: 2014-01-23T01:55:04.460
Modified: 2025-04-11T00:51:21.963
Link: CVE-2014-0979
 Redhat
                        Redhat
                    No data.