Debian Security Advisory 1753-1 – As indicated in the Etch release notes, security support for the Iceweasel version in the oldstable distribution (Etch) needed to be stopped before the end of the regular security maintenance life cycle.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/76028/dsa-1753-1.txt
Source: https://packetstormsecurity.com/files/76028/Debian-Linux-Security-Advisory-1753-1.html