Wait until your local mirror gets 0.97.5+dfsg-1ubuntu0.12.04.2.
If your local mirror already has it, you may also need to remove the packages that are currently installed, and reinstall clamav.
Wait until your local mirror gets 0.97.5+ dfsg-1ubuntu0. 12.04.2.
If your local mirror already has it, you may also need to remove the packages that are currently installed, and reinstall clamav.