Mandriva Linux Security Advisory 2009-149 – 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. Fixed 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. This update provides fixes for these vulnerabilities.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/79042/MDVSA-2009-149.txt
Source: https://packetstormsecurity.com/files/79042/Mandriva-Linux-Security-Advisory-2009-149.html