/usr/lib/x86_64-linux-gnu/libasan.so.0 is in libasan0 4.8.5-4ubuntu8.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libasan.so.0.0.0
/usr/lib/x86_64-linux-gnu/libasan.so.0.0.0