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4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="section">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<a name="id-1.2"></a>Release Notes for BIND Version 9.11.2b1</h2></div></div></div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="section">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<div class="titlepage"><div><div><h3 class="title">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<a name="relnotes_intro"></a>Introduction</h3></div></div></div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This document summarizes changes since the last production
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync release on the BIND 9.11 branch.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Please see the <code class="filename">CHANGES</code> file for a further
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync list of bug fixes and other changes.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="section">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<div class="titlepage"><div><div><h3 class="title">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<a name="relnotes_download"></a>Download</h3></div></div></div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync The latest versions of BIND 9 software can always be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <a class="link" href="http://www.isc.org/downloads/" target="_top">http://www.isc.org/downloads/</a>.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync There you will find additional information about each release,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync source code, and pre-compiled versions for Microsoft Windows
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync operating systems.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="section">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<div class="titlepage"><div><div><h3 class="title">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<a name="root_key"></a>New DNSSEC Root Key</h3></div></div></div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ICANN is in the process of introducing a new Key Signing Key (KSK) for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync the global root zone. BIND has multiple methods for managing DNSSEC
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync trust anchors, with somewhat different behaviors. If the root
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync key is configured using the <span class="command"><strong>managed-keys</strong></span>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync statement, or if the pre-configured root key is enabled by using
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <span class="command"><strong>dnssec-validation auto</strong></span>, then BIND can keep
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync keys up to date automatically. Servers configured in this way
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync will roll seamlessly to the new key when it is published in
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync the root zone. However, keys configured using the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <span class="command"><strong>trusted-keys</strong></span> statement are not automatically
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync maintained. If your server is performing DNSSEC validation
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync and is configured using <span class="command"><strong>trusted-keys</strong></span>, you are
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync advised to change your configuration before the root zone begins
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync signing with the new KSK. This is currently scheduled for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync October 11, 2017.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This release includes an updated version of the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <code class="filename">bind.keys</code> file containing the new root
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync key. This file can also be downloaded from
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <a class="link" href="https://www.isc.org/bind-keys" target="_top">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync https://www.isc.org/bind-keys
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </a>.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="section">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<div class="titlepage"><div><div><h3 class="title">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<a name="relnotes_license"></a>License Change</h3></div></div></div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync With the release of BIND 9.11.0, ISC changed to the open
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync source license for BIND from the ISC license to the Mozilla
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Public License (MPL 2.0).
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync The MPL-2.0 license requires that if you make changes to
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync licensed software (e.g. BIND) and distribute them outside
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync your organization, that you publish those changes under that
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync same license. It does not require that you publish or disclose
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync anything other than the changes you made to our software.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This new requirement will not affect anyone who is using BIND
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync without redistributing it, nor anyone redistributing it without
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync changes, therefore this change will be without consequence
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for most individuals and organizations who are using BIND.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Those unsure whether or not the license change affects their
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync use of BIND, or who wish to discuss how to comply with the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync license may contact ISC at <a class="link" href="https://www.isc.org/mission/contact/" target="_top">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync https://www.isc.org/mission/contact/</a>.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="section">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<div class="titlepage"><div><div><h3 class="title">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<a name="relnotes_security"></a>Security Fixes</h3></div></div></div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<li class="listitem">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync The BIND installer on Windows used an unquoted service path,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync which can enable privilege escalation. This flaw is disclosed
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync in CVE-2017-3141. [RT #45229]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </li>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<li class="listitem">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync With certain RPZ configurations, a response with TTL 0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync could cause <span class="command"><strong>named</strong></span> to go into an infinite
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync query loop. This flaw is disclosed in CVE-2017-3140.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync [RT #45181]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </li>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync</ul></div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync </div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="section">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<div class="titlepage"><div><div><h3 class="title">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<a name="relnotes_changes"></a>Feature Changes</h3></div></div></div>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync<li class="listitem">
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <p>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync <span class="command"><strong>dig +ednsopt</strong></span> now accepts the names
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for EDNS options in addition to numeric values. For example,
an EDNS Client-Subnet option could be sent using
<span class="command"><strong>dig +ednsopt=ecs:...</strong></span>. Thanks to
John Worley of Secure64 for the contribution. [RT #44461]
</p>
</li>
<li class="listitem">
<p>
Threads in <span class="command"><strong>named</strong></span> are now set to human-readable
names to assist debugging on operating systems that support that.
Threads will have names such as "isc-timer", "isc-sockmgr",
"isc-worker0001", and so on. This will affect the reporting of
subsidiary thread names in <span class="command"><strong>ps</strong></span> and
<span class="command"><strong>top</strong></span>, but not the main thread. [RT #43234]
</p>
</li>
</ul></div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="relnotes_bugs"></a>Bug Fixes</h3></div></div></div>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<p>
Due to some incorrectly deleted code, when BIND was
built with LMDB, zones that were deleted via
<span class="command"><strong>rndc delzone</strong></span> were removed from the
running server but were not removed from the new zone
database, so that deletion did not persist after a
server restart. This has been corrected. [RT #45185]
</p>
</li>
<li class="listitem">
<p>
Semicolons are no longer escaped when printing CAA and
URI records. This may break applications that depend on the
presence of the backslash before the semicolon. [RT #45216]
</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 9.11 is yet to be determined but
will not be before BIND 9.13.0 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>
</div>
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