FreeBSD Security Advisory – The run-time link-editor, rtld, links dynamic executable with their needed libraries at run-time. It also allows users to explicitly load libraries via various LD_ environmental variables.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/83415/FreeBSD-SA-09-16.rtld.txt
Source: https://packetstormsecurity.com/files/83415/FreeBSD-Security-Advisory-rtld.html