/usr/lib/x86_64-linux-gnu/libcheese-gtk.so.25 is in libcheese-gtk25 3.18.1-2ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcheese-gtk.so.25.0.3
/usr/lib/x86_64-linux-gnu/libcheese-gtk.so.25.0.3