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Unknown
CVE-2014-0979
Disclosure Date: January 23, 2014 (last updated October 05, 2023)
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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