GLSA 200508-03: nbSMTP: Format string vulnerability
Posted on: 08/02/2005 03:12 PM

A nbSMTP security update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200508-03
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http://security.gentoo.org/
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Severity: Normal
Title: nbSMTP: Format string vulnerability
Date: August 02, 2005
Bugs: #100274
ID: 200508-03

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Synopsis
=======

nbSMTP is vulnerable to a format string vulnerability which may result in remote execution of arbitrary code.

Background
=========

nbSMTP is an SMTP client suitable to run in chroot jails, in embedded systems, laptops and workstations.

Affected packages
================

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Package / Vulnerable / Unaffected
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1 mail-mta/nbsmtp lt; 1.00 gt;= 1.00

Description
==========

Niels Heinen discovered a format string vulnerability.

Impact
=====

An attacker can setup a malicious SMTP server and exploit this vulnerability to execute arbitrary code with the permissions of the user running nbSMTP.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All nbSMTP users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=mail-mta/nbsmtp-1.0"

References
=========

[ 1 ] nbSMTP official site
http://nbsmtp.ferdyx.org/

Availability
===========

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200508-03.xml

Concerns?
========

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.

License
======

Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0


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