When using any of the krfb versions that uses the system libvncserver library
instead of the statically linked one (that is, krfb >= 4.14.4, including
package 14.12.3 which is currently in openSUSE:13.2:Updates or any 14.x or 15.x
versions), krfb segfaults when a vnc client connects due to a bug in the system
libvncserver.

This has been reported and identified on
https://bugs.kde.org/show_bug.cgi?id=344571

The bug in libvncserver is fixed in 0.9.10 (which is already in the
devel:libraries:c_c++ project) but openSUSE 13.2 only includes 0.9.9, so an
update of the libVNCServer package should be released in openSUSE:13.2:Updates
.