The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://www.guninski.com/modproxy1.html http://www.vuxml.org/freebsd/ca6c8f35-0a5f-11d9-ad6f-00061bc2ad93.html

The following packages are affected: apache apache13-ssl apache13-modssl apache13+ipv6 apache13-modperl CVE-2004-0492 Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.