The remote host is missing an update to apache announced via advisory MDVSA-2009:168.
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-2009:168
Multiple vulnerabilities has been found and corrected in apache: The stream_reqbody_cl function in mod_proxy_http.c in the mod_proxy module in the Apache HTTP Server before 2.3.3, when a reverse proxy is configured, does not properly handle an amount of streamed data that exceeds the Content-Length value, which allows remote attackers to cause a denial of service (CPU consumption) via crafted requests (CVE-2009-1890). Fix a potential Denial-of-Service attack against mod_deflate or other modules, by forcing the server to consume CPU time in compressing a large file after a client disconnects (CVE-2009-1891). This update provides fixes for these vulnerabilities. Affected: Enterprise Server 5.0