The remote host is missing an update to avahi announced via advisory MDVSA-2009:076.
To upgrade automatically use MandrakeUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you. https://secure1.securityspace.com/smysecure/catid.html?in=MDVSA-2009:076
A security vulnerability has been identified and fixed in avahi which could allow remote attackers to cause a denial of service (network bandwidth and CPU consumption) via a crafted legacy unicast mDNS query packet (CVE-2009-0758). The updated packages have been patched to prevent this. Affected: 2008.0, 2008.1, 2009.0