The remote host is missing updates announced in advisory CLSA-2005:1020.
A new version of Clamav has been released to address vulnerabilities in handling of UPX and FSG compressed executables that could lead to a buffer overflow or a denial of service situation (infinite loop), respectively.
This advisory updates Clamav to version 0.87, fixing these issues.
Solution: The apt tool can be used to perform RPM package upgrades by running 'apt-get update' followed by 'apt-get upgrade'