GLSA-200608-06 : Courier MTA: Denial of Service vulnerability

High Nessus Plugin ID 22148


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-200608-06 (Courier MTA: Denial of Service vulnerability)

Courier MTA has fixed a security issue relating to usernames containing the '=' character, causing high CPU utilization.
Impact :

An attacker could exploit this vulnerability by sending a specially crafted email to a mail gateway running a vulnerable version of Courier MTA.
Workaround :

There is no known workaround at this time.


All Courier MTA users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=mail-mta/courier-0.53.2'

See Also

Plugin Details

Severity: High

ID: 22148

File Name: gentoo_GLSA-200608-06.nasl

Version: $Revision: 1.12 $

Type: local

Published: 2006/08/04

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:courier, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2006/08/04

Vulnerability Publication Date: 2006/06/08

Reference Information

CVE: CVE-2006-2659

OSVDB: 26232

GLSA: 200608-06