This script is Copyright (C) 2004-2016 Tenable Network Security, Inc.
The remote messaging service has a buffer overflow vulnerability.
The remote host is running Citadel/UX, a messaging server for Unix.
There is a buffer overflow in the remote version of this software
that could be exploited by a remote attacker to create a denial of
service, or execute arbitrary code.
To exploit this flaw, an attacker would need to provide a specially
crafted argument to the USER command.
See also :
Upgrade to Citadel 6.24 or later.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 9.0
Public Exploit Available : true