Ipswitch IMail Server IMAP LIST Command Remote Overflow DoS

High Nessus Plugin ID 20320


The remote IMAP server is affected by a denial of service vulnerability.


The remote host is running Ipswitch Collaboration Suite or IMail Server, commercial messaging and collaboration suites for Windows.

The version of Ipswitch Collaboration Suite / IMail server installed on the remote host contains an IMAP server that suffers from a denial of service flaw. Using a specially crafted LIST command of around 8000 bytes, an authenticated attacker can crash the IMAP server on the affected host, thereby denying service to legitimate users.


Upgrade to Ipswitch Collaboration Suite 2.02 / IMail 8.22 or later.

See Also




Plugin Details

Severity: High

ID: 20320

File Name: ipswitch_imail_imapd_list_overflow.nasl

Version: $Revision: 1.17 $

Type: remote

Agent: windows

Family: Windows

Published: 2005/12/19

Modified: 2011/09/12

Dependencies: 10125, 17975

Risk Information

Risk Factor: High


Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:ipswitch:imail

Excluded KB Items: imap/false_imap, imap/overflow

Exploit Available: true

Exploit Ease: No exploit is required

Vulnerability Publication Date: 2005/12/06

Reference Information

CVE: CVE-2005-2923

BID: 15753

OSVDB: 21499

CWE: 20