This script is Copyright (C) 2002-2014 Tenable Network Security, Inc.
The identd server is prone to a remote buffer overflow attack.
The identd server on this port seems to be a version of fake identd
that fails to properly validate user input before copying it into a
buffer of fixed size. By splitting data into two or more packets, an
anonymous remote attacker can overflow the input buffer and execute
arbitrary code with root privileges.
See also :
Either disable the service if it's not required or upgrade to Fake
Identd version 1.5 as that reportedly is not affected by this
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 8.3
Public Exploit Available : true