this is a recurrent ubuntu problem, why not backport from edgy? clamav-0.88.2 is affected by a security problem too:
http://www.securityfocus.com/bid/19381 -- ClamAV-Daemon Out of date https://launchpad.net/bugs/53856 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
