bugtraq - [ GLSA 200608-18 ] Net::Server: Format string vulnerability

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <200608102150.56237.jaervosz@gentoo.org>
Date: Thu, 10 Aug 2006 21:50:55 +0200
From: Sune Kloppenborg Jeppesen <jaervosz@...too.org>
To: gentoo-announce@...too.org
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200608-18 ] Net::Server: Format string vulnerability

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200608-18
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: Net::Server: Format string vulnerability
      Date: August 10, 2006
      Bugs: #142386
        ID: 200608-18

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A format string vulnerability has been reported in Net::Server which
can be exploited to cause a Denial of Service.

Background
==========

Net::Server is an extensible, generic Perl server engine. It is used by
several Perl applications like Postgrey.

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

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  dev-perl/net-server       < 0.88                          >= 0.88

Description
===========

The log function of Net::Server does not handle format string
specifiers properly before they are sent to syslog.

Impact
======

By sending a specially crafted datastream to an application using
Net::Server, an attacker could cause a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Net::Server should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-perl/net-server-0.88"

References
==========

  [ 1 ] CVE-2005-1127
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1127

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

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

  http://security.gentoo.org/glsa/glsa-200608-18.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@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 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/2.5

Content of type "application/pgp-signature" skipped