/usr/share/doc/libtasn1-bin/changelog.Debian.gz is in libtasn1-bin 4.13-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libtasn1-bin/../libtasn1-6/changelog.Debian.gz
/usr/share/doc/libtasn1-bin/../libtasn1-6/changelog.Debian.gz