The remote host is missing an update to squid announced via advisory MDVSA-2009:034.
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-2009:034
Due to an internal error Squid is vulnerable to a denial of service attack when processing specially crafted requests. This problem allows any client to perform a denial of service attack on the Squid service (CVE-2009-0478). The updated packages have been patched to adress this. Affected: 2008.1, 2009.0