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Gentoo Linux Security Advisory                           GLSA 201006-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: BIND: Multiple vulnerabilities
      Date: June 01, 2010
      Bugs: #301548, #308035
        ID: 201006-11

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Synopsis
========

Several cache poisoning vulnerabilities have been found in BIND.

Background
==========

ISC BIND is the Internet Systems Consortium implementation of the
Domain Name System (DNS) protocol.

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

    -------------------------------------------------------------------
     Package       /  Vulnerable  /                         Unaffected
    -------------------------------------------------------------------
  1  net-dns/bind     < 9.4.3_p5                           >= 9.4.3_p5

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

Multiple cache poisoning vulnerabilities were discovered in BIND. For
further information please consult the CVE entries and the ISC Security
Bulletin referenced below.

Note: CVE-2010-0290 and CVE-2010-0382 exist because of an incomplete
fix and a regression for CVE-2009-4022.

Impact
======

An attacker could exploit this weakness to poison the cache of a
recursive resolver and thus spoof DNS traffic, which could e.g. lead to
the redirection of web or mail traffic to malicious sites.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All BIND users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-dns/bind-9.4.3_p5"

References
==========

  [ 1 ] ISC Advisory
        https://www.isc.org/advisories/CVE2009-4022
  [ 2 ] CVE-2009-4022
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4022
  [ 3 ] CVE-2010-0097
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0097
  [ 4 ] CVE-2010-0290
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0290
  [ 5 ] CVE-2010-0382
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0382

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

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

  http://security.gentoo.org/glsa/glsa-201006-11.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.

License
=======

Copyright 2010 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