Debian Linux Security Advisory 2098-2 – The update for TYPO3 in DSA 2098 introduced a regression which could make the backend functionality unusable. This update corrects the problem.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/93632/dsa-2098-2.txt
Source: https://packetstormsecurity.com/files/93632/Debian-Linux-Security-Advisory-2098-2.html