"When eperl is installed setuid root, it can switch to the UID/GID of
the scripts owner. Although Debian doesn't ship the program setuid
root, this is a useful feature which people may have activated
locally. When the program is used as /usr/lib/cgi-bin/nph-eperl the
bugs could lead into a remote vulnerability as well." Updates and more information at LWN.net.
March 7, 2001