apt  policy  libnss3

root@Microknoppix:/etc/apt/sources.list.d#  
root@Microknoppix:/etc/apt/sources.list.d# apt policy libnss3
libnss3:
 Installed: 2:3.75-1
 Candidate: 2:3.75-1
 Version table:
*** 2:3.75-1 100
       100 /UNIONFS/var/lib/dpkg/status
    2:3.42.1-1+deb10u8 500
       500 http://archive.debian.org/debian-security buster/updates/main i386 Packages
    2:3.42.1-1+deb10u5 500
       500 http://archive.debian.org/debian buster/main i386 Packages
root@Microknoppix:/etc/apt/sources.list.d#  
root@Microknoppix:/etc/apt/sources.list.d#  
root@Microknoppix:/etc/apt/sources.list.d#