COMMAND
fsp package
SYSTEMS AFFECTED
Debian Linux
PROBLEM
Vanja Hrustic posted following. The fsp package introduces a
possible security flaw. When the fsp package is installed it adds
the ftp user without prompting the admin. This can enable
anonymous FTP if you use the standard ftp or wu-ftpd as your FTP
daemon. If you have have installed fsp and a FTP daemon and do
not want to have anonymous FTP enabled you should remove the ftp
account. Please note that if you use proftpd as the FTP daemon
this flaw will not affect you, since it required one to enable
anonymous FTP manually.
SOLUTION
There are fixed packages available (2.71-10) which *do not* remove
the FTP user, you will have to do this manually:
ftp://ftp.debian.org/pub/debian/dists/proposed-updates/
Debian's announcement can be found at:
http://www.debian.org/Lists-Archives/debian-security-announce-9811/msg00004.html
Debian GNU/Linux 2.0r5 has fixed this (fsp_2.71-8hamm10.deb).