full-disclosure - suexec doesn't ignore links in safe

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From: rcs at rshell.org (Guy Cohen)
Subject: suexec doesn't ignore links in safe_path

suexec suppose to guard you from unprivileged programs (among other things),
by letting you configure a safe_path of execution. However, if a user is 
able to link, she can create a link to files outside of the safe_path and 
then execute them.