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

This script is Copyright (C) 2006-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

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.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200608-06.xml

Solution :

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

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 22148 (gentoo_GLSA-200608-06.nasl)

Bugtraq ID:

CVE ID: CVE-2006-2659