Debian Security Advisory DSA 803-1 – A vulnerability has been discovered in the Apache web server. When it is acting as an HTTP proxy, it allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct cross-site scripting attacks, which causes Apache to incorrectly handle and forward the body of the request.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/39960/dsa-803-1.txt
Source: https://packetstormsecurity.com/files/39960/Debian-Linux-Security-Advisory-803-1.html