$ ldd /usr/sbin/cron
linux-vdso.so.1 (0x00007ffdbad7f000)
libpam.so.0 => /lib/x86_64-linux-gnu/libpam.so.0 (0x00007f9c76d08000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1
(0x00007f9c76cdd000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f9c76b1a000)
libaudit.so.1 => /lib/x86_64-linux-gnu/libaudit.so.1
(0x00007f9c76aef000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f9c76aea000)
libpcre2-8.so.0 => /usr/lib/x86_64-linux-gnu/libpcre2-8.so.0
(0x00007f9c76a5a000)
/lib64/ld-linux-x86-64.so.2 (0x00007f9c76d5f000)
libcap-ng.so.0 => /lib/x86_64-linux-gnu/libcap-ng.so.0
(0x00007f9c76a50000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f9c76a2f000)
$ apt-cache policy libpam0g
libpam0g:
Installed: 1.3.1-5
Candidate: 1.3.1-5
Version table:
*** 1.3.1-5 990
990 http://ftp.it.debian.org/debian testing/main amd64 Packages
101 http://ftp.it.debian.org/debian unstable/main amd64 Packages
100 /var/lib/dpkg/status
