[ GLSA 200502-15 ] PowerDNS: Denial of Service vulnerability

[Matthias Geerdsen <vorlon () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200502-15
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: PowerDNS: Denial of Service vulnerability
      Date: February 13, 2005
      Bugs: #80713
        ID: 200502-15

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Synopsis
========

A vulnerability in PowerDNS could lead to a temporary Denial of
Service.

Background
==========

The PowerDNS Nameserver is an authoritative-only nameserver which uses
a flexible backend architecture.

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

    -------------------------------------------------------------------
     Package       /  Vulnerable  /                         Unaffected
    -------------------------------------------------------------------
  1  net-dns/pdns      < 2.9.17                              >= 2.9.17

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

A vulnerability has been reported in the DNSPacket::expand method of
dnspacket.cc.

Impact
======

An attacker could cause a temporary Denial of Service by sending a
random stream of bytes to the PowerDNS Daemon.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PowerDNS users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-dns/pdns-2.9.17"

References
==========

  [ 1 ] PowerDNS Release Notes
        http://doc.powerdns.com/changelog.html#CHANGELOG-2-9-17
  [ 2 ] PowerDNS Ticket #21
        http://ds9a.nl/cgi-bin/cvstrac/pdns/tktview?tn=21

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

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

  http://security.gentoo.org/glsa/glsa-200502-15.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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