Comment 2 for bug 144163

Somehow you seem to have lost the clamav user on your system (this is not at all typical - I've installed that same update on several systems without issue.

Try this:

sudo adduser --system --no-create-home --disabled-password --disabled-login --shell /bin/false --group --home /var/lib/clamav clamav

If that works without error, then try:

sudo apt-get -f install

Let us know if that works.