/usr/share/stellarium/data/DejaVuSans.ttf is in stellarium-data 0.14.3-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/stellarium/data/../../fonts/truetype/dejavu/DejaVuSans.ttf
/usr/share/stellarium/data/../../fonts/truetype/dejavu/DejaVuSans.ttf