# apt-cache policy libc6
libc6:
  Installed: 2.3.2.ds1-22
  Candidate: 2.3.6.ds1-13
  Version Table:
     2.3.6.ds1-13 0
        500 http://http.us.debian.org stable/main Packages
 *** 2.3.2.ds1-22 0
        100 /var/lib/dpkg/status