GLSA 200508-03: nbSMTP: Format string vulnerability

http://security.gentoo.org/

Severity:	normal
Title:	nbSMTP: Format string vulnerability
Date:	08/02/2005
Bugs:	#100274
ID:	200508-03

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

Package	Vulnerable	Unaffected	Architecture(s)
mail-mta/nbsmtp	< 1.00	>= 1.00	All supported architectures

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 ">=mail-mta/nbsmtp-1.0"

References

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 https://bugs.gentoo.org.