/usr/lib/evolution/3.10/libecontacteditor.so.0 is in libevolution 3.10.4-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/evolution/3.10/libecontacteditor.so.0.0.0
/usr/lib/evolution/3.10/libecontacteditor.so.0.0.0