/usr/lib/x86_64-linux-gnu/libtasn1.so is in libtasn1-3-dev 2.10-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libtasn1.so.3.1.12
/usr/lib/x86_64-linux-gnu/libtasn1.so.3.1.12