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<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="id-1.2"></a>Release Notes for BIND Version 9.10.5-P3</h2></div></div></div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="relnotes_intro"></a>Introduction</h3></div></div></div>
<p>
This document summarizes changes since BIND 9.10.5:
</p>
<p>
BIND 9.10.5-P1 addresses the security issues described in
CVE-2017-3140 and CVE-2017-3141.
</p>
<p>
BIND 9.11.1-P2 addresses the security issues described in
CVE-2017-3142 and CVE-2017-3143. It also includes an update
to the address of the B root server.
</p>
<p>
BIND 9.10.5-P3 addresses a TSIG regression introduced in 9.10.5-P2.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="relnotes_download"></a>Download</h3></div></div></div>
<p>
The latest versions of BIND 9 software can always be found at
<a class="link" href="http://www.isc.org/downloads/" target="_top">http://www.isc.org/downloads/</a>.
There you will find additional information about each release,
source code, and pre-compiled versions for Microsoft Windows
operating systems.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="root_key"></a>New DNSSEC Root Key</h3></div></div></div>
<p>
ICANN is in the process of introducing a new Key Signing Key (KSK) for
the global root zone. BIND has multiple methods for managing DNSSEC
trust anchors, with somewhat different behaviors. If the root
key is configured using the <span class="command"><strong>managed-keys</strong></span>
statement, or if the pre-configured root key is enabled by using
<span class="command"><strong>dnssec-validation auto</strong></span>, then BIND can keep
keys up to date automatically. Servers configured in this way
will roll seamlessly to the new key when it is published in
the root zone. However, keys configured using the
<span class="command"><strong>trusted-keys</strong></span> statement are not automatically
maintained. If your server is performing DNSSEC validation
and is configured using <span class="command"><strong>trusted-keys</strong></span>, you are
advised to change your configuration before the root zone begins
signing with the new KSK. This is currently scheduled for
October 11, 2017.
</p>
<p>
This release includes an updated version of the
<code class="filename">bind.keys</code> file containing the new root
key. This file can also be downloaded from
<a class="link" href="https://www.isc.org/bind-keys" target="_top">
https://www.isc.org/bind-keys
</a>.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="relnotes_security"></a>Security Fixes</h3></div></div></div>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<p>
An error in TSIG handling could permit unauthorized zone
transfers or zone updates. These flaws are disclosed in
CVE-2017-3142 and CVE-2017-3143. [RT #45383]
</p>
</li>
<li class="listitem">
<p>
The BIND installer on Windows used an unquoted service path,
which can enable privilege escalation. This flaw is disclosed
in CVE-2017-3141. [RT #45229]
</p>
</li>
<li class="listitem">
<p>
With certain RPZ configurations, a response with TTL 0
could cause <span class="command"><strong>named</strong></span> to go into an infinite
query loop. This flaw is disclosed in CVE-2017-3140.
[RT #45181]
</p>
</li>
</ul></div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="end_of_life"></a>End of Life</h3></div></div></div>
<p>
The end of life for BIND 9.10 is yet to be determined but
will not be before BIND 9.12.0 has been released for 6 months.
<a class="link" href="https://www.isc.org/downloads/software-support-policy/" target="_top">https://www.isc.org/downloads/software-support-policy/</a>
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="relnotes_thanks"></a>Thank You</h3></div></div></div>
<p>
Thank you to everyone who assisted us in making this release possible.
If you would like to contribute to ISC to assist us in continuing to
make quality open source software, please visit our donations page at
<a class="link" href="http://www.isc.org/donate/" target="_top">http://www.isc.org/donate/</a>.
</p>
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