Comment 2 for bug 618107

Looks like a debconf issue.

Setting up clamav-base (0.96.1+dfsg-0ubuntu0.10.04.1) ...
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $ret in string eq at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 109.
dpkg: error processing clamav-base (--configure):
 subprocess installed post-installation script returned error exit status 128
dpkg: dependency problems prevent configuration of clamav-freshclam:
 clamav-freshclam depends on clamav-base (>= 0.96.1+dfsg-0ubuntu0.10.04.1); however:
  Package clamav-base is not configured yet.
dpkg: error processing clamav-freshclam (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of clamav:
 clamav depends on clamav-freshclam | clamav-data; however:
  Package clamav-freshclam is not configured yet.
  Package clamav-data is not installed.
  Package clamav-freshclam which provides clamav-data is not configured yet.
dpkg: error processing clamav (--configure):
 dependency problems - leaving unconfigured