Debian Security Advisory DSA 809-2 – Certain aborted requests that trigger an assertion in squid, the popular WWW proxy cache, may allow remote attackers to cause a denial of service. This update also fixes a regression caused by DSA 751.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/40356/dsa-809-2.txt
Source: https://packetstormsecurity.com/files/40356/Debian-Linux-Security-Advisory-809-2.html