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252 lines
10 KiB
HTML
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- This Source Code Form is subject to the terms of the Mozilla Public
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- License, v. 2.0. If a copy of the MPL was not distributed with this
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="article">
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<div class="section">
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
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<a name="id-1.2"></a>Release Notes for BIND Version 9.11.5</h2></div></div></div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_intro"></a>Introduction</h3></div></div></div>
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<p>
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This document summarizes changes since the last production
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release on the BIND 9.11 (Extended Support Version) branch.
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Please see the <code class="filename">CHANGES</code> file for a further
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list of bug fixes and other changes.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_download"></a>Download</h3></div></div></div>
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<p>
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The latest versions of BIND 9 software can always be found at
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<a class="link" href="http://www.isc.org/downloads/" target="_top">http://www.isc.org/downloads/</a>.
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There you will find additional information about each release,
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source code, and pre-compiled versions for Microsoft Windows
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operating systems.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_license"></a>License Change</h3></div></div></div>
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<p>
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With the release of BIND 9.11.0, ISC changed to the open
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source license for BIND from the ISC license to the Mozilla
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Public License (MPL 2.0).
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</p>
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<p>
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The MPL-2.0 license requires that if you make changes to
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licensed software (e.g. BIND) and distribute them outside
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your organization, that you publish those changes under that
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same license. It does not require that you publish or disclose
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anything other than the changes you made to our software.
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</p>
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<p>
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This requirement will not affect anyone who is using BIND, with
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or without modifications, without redistributing it, nor anyone
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redistributing it without changes. Therefore, this change will be
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without consequence for most individuals and organizations who are
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using BIND.
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</p>
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<p>
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Those unsure whether or not the license change affects their
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use of BIND, or who wish to discuss how to comply with the
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license may contact ISC at <a class="link" href="https://www.isc.org/mission/contact/" target="_top">
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https://www.isc.org/mission/contact/</a>.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="win_support"></a>Legacy Windows No Longer Supported</h3></div></div></div>
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<p>
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As of BIND 9.11.2, Windows XP and Windows 2003 are no longer supported
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platforms for BIND; "XP" binaries are no longer available for download
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from ISC.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_security"></a>Security Fixes</h3></div></div></div>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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<p>
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<span class="command"><strong>named</strong></span> could crash during recursive processing
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of DNAME records when <span class="command"><strong>deny-answer-aliases</strong></span> was
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in use. This flaw is disclosed in CVE-2018-5740. [GL #387]
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</p>
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</li>
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<li class="listitem">
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<p>
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When recursion is enabled but the <span class="command"><strong>allow-recursion</strong></span>
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and <span class="command"><strong>allow-query-cache</strong></span> ACLs are not specified, they
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should be limited to local networks, but they were inadvertently set
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to match the default <span class="command"><strong>allow-query</strong></span>, thus allowing
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remote queries. This flaw is disclosed in CVE-2018-5738. [GL #309]
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</p>
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</li>
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</ul></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_features"></a>New Features</h3></div></div></div>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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<p>
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<span class="command"><strong>named</strong></span> now supports the "root key sentinel"
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mechanism. This enables validating resolvers to indicate
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which trust anchors are configured for the root, so that
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information about root key rollover status can be gathered.
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To disable this feature, add
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<span class="command"><strong>root-key-sentinel no;</strong></span> to
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<code class="filename">named.conf</code>.
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</p>
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</li>
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<li class="listitem">
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<p>
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Added the ability not to return a DNS COOKIE option when one
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is present in the request. To prevent a cookie being returned,
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add <span class="command"><strong>answer-cookie no;</strong></span> to
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<code class="filename">named.conf</code>. [GL #173]
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</p>
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<p>
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<span class="command"><strong>answer-cookie no</strong></span> is only intended as a
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temporary measure, for use when <span class="command"><strong>named</strong></span>
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shares an IP address with other servers that do not yet
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support DNS COOKIE. A mismatch between servers on the
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same address is not expected to cause operational problems,
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but the option to disable COOKIE responses so that all
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servers have the same behavior is provided out of an
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abundance of caution. DNS COOKIE is an important security
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mechanism, and should not be disabled unless absolutely
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necessary.
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</p>
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</li>
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<li class="listitem">
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<p>
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Two new update policy rule types have been added
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<span class="command"><strong>krb5-selfsub</strong></span> and <span class="command"><strong>ms-selfsub</strong></span>
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which allow machines with Kerberos principals to update
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the name space at or below the machine names identified
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in the respective principals.
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</p>
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</li>
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</ul></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_removed"></a>Removed Features</h3></div></div></div>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
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<p>
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<span class="command"><strong>named</strong></span> will now log a warning if the old
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BIND now can be compiled against libidn2 library to add
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IDNA2008 support. Previously BIND only supported IDNA2003
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using (now obsolete) idnkit-1 library.
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</p>
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</li></ul></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_changes"></a>Feature Changes</h3></div></div></div>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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<p>
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<span class="command"><strong>dig +noidnin</strong></span> can be used to disable IDN
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processing on the input domain name, when BIND is compiled
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with IDN support.
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</p>
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</li>
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<li class="listitem">
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<p>
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Multiple <span class="command"><strong>cookie-secret</strong></span> clause are now
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supported. The first <span class="command"><strong>cookie-secret</strong></span> in
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<code class="filename">named.conf</code> is used to generate new
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server cookies. Any others are used to accept old server
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cookies or those generated by other servers using the
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matching <span class="command"><strong>cookie-secret</strong></span>.
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</p>
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</li>
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<li class="listitem">
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<p>
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The <span class="command"><strong>rndc nta</strong></span> command could not differentiate
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between views of the same name but different class; this
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has been corrected with the addition of a <span class="command"><strong>-class</strong></span>
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option. [GL #105]
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</p>
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</li>
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</ul></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_bugs"></a>Bug Fixes</h3></div></div></div>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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<p>
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When a negative trust anchor was added to multiple views
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using <span class="command"><strong>rndc nta</strong></span>, the text returned via
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<span class="command"><strong>rndc</strong></span> was incorrectly truncated after the
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first line, making it appear that only one NTA had been
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added. This has been fixed. [GL #105]
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</p>
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</li>
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<li class="listitem">
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<p>
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<span class="command"><strong>named</strong></span> now rejects excessively large
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incremental (IXFR) zone transfers in order to prevent
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possible corruption of journal files which could cause
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<span class="command"><strong>named</strong></span> to abort when loading zones. [GL #339]
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</p>
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</li>
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<li class="listitem">
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<p>
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<span class="command"><strong>rndc reload</strong></span> could cause <span class="command"><strong>named</strong></span>
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to leak memory if it was invoked before the zone loading actions
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from a previous <span class="command"><strong>rndc reload</strong></span> command were
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completed. [RT #47076]
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</p>
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</li>
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</ul></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="end_of_life"></a>End of Life</h3></div></div></div>
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<p>
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BIND 9.11 (Extended Support Version) will be supported until at
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least December, 2021.
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See <a class="link" href="https://www.isc.org/downloads/software-support-policy/" target="_top">https://www.isc.org/downloads/software-support-policy/</a> for details of ISC's software support policy.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_thanks"></a>Thank You</h3></div></div></div>
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<p>
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Thank you to everyone who assisted us in making this release possible.
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If you would like to contribute to ISC to assist us in continuing to
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make quality open source software, please visit our donations page at
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<a class="link" href="http://www.isc.org/donate/" target="_top">http://www.isc.org/donate/</a>.
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</p>
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</div>
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</div>
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