The GNOME Display Manager was updated to fix several bugs:
Security issue fixed: - Removed gdm-fingerprint and gdm-smartcard pamfiles that allowed unlocking the screen without password or fingerprint if fingerprint reader support was enabled. (boo#900836).
Bugs fixed: - Fix support for DISPLAYMANAGER_STARTS_XSERVER from /etc/sysconfig/displaymanager (bsc#919723). - Ensure ShowLocalGreeter configuration key is properly handled (bgo#743440).