For those running Exim <= 4.69 (the default Debian MTA), you should be
aware there is an exploit for remote *root* code execution in the wild.
The fix is in lenny-security and in Ubuntu:
http://lists.debian.org/debian-security-announce/2010/msg00181.html
Steve Kemp has a package for any Etch users (without security support!)
still around:
http://blog.steve.org.uk/the_remote_root_hole_in_exim4_is_painful.html
Also for Red Hat-based people:
https://bugzilla.redhat.com/show_bug.cgi?id=661756
The fixes at the moment are only for the remote code execution, then the
root privilege escalation (CVE-2010-4345) is being addressed separately
"soon".
--
Dominic Cleal
dominic(a)computerkb.co.uk