Citadel/UX select() Bitmap Array Index Remote Oerflow

This script is Copyright (C) 2005-2011 Tenable Network Security, Inc.


Synopsis :

The remote messaging service has a buffer overflow vulnerability.

Description :

The remote host is running Citadel/UX, a messaging server for Unix.

The remote version of this software is vulnerable to a buffer overflow
when performing a select() system call while providing very high file
descriptors. A remote attacker may exploit this flaw to modify at
least one byte in memory. This could lead to a denial of service, or
possibly arbitrary code execution.

See also :

http://archives.neohapsis.com/archives/fulldisclosure/2005-01/0687.html
http://archives.neohapsis.com/archives/bugtraq/2005-01/0266.html

Solution :

Upgrade to Citadel 6.29 or later.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.3
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Gain a shell remotely

Nessus Plugin ID: 16245 (citadel_select_overflow.nasl)

Bugtraq ID: 12344

CVE ID: