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270 lines
9.4 KiB
XML
270 lines
9.4 KiB
XML
<!DOCTYPE book [
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<!ENTITY mdash "—">
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<!ENTITY ouml "ö">]>
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<!--
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- Copyright (C) 2014-2017 Internet Systems Consortium, Inc. ("ISC")
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-
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- Permission to use, copy, modify, and/or distribute this software for any
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- purpose with or without fee is hereby granted, provided that the above
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- copyright notice and this permission notice appear in all copies.
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-
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- THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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- REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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- AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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- INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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- LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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- OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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- PERFORMANCE OF THIS SOFTWARE.
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-->
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<section xmlns:db="http://docbook.org/ns/docbook" version="5.0"><info/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="noteversion.xml"/>
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<section xml:id="relnotes_intro"><info><title>Introduction</title></info>
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<para>
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This document summarizes significant changes since the last
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production release of BIND on the corresponding major release
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branch.
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Please see the CHANGES file for a further list of bug fixes and
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other changes.
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</para>
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</section>
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<section xml:id="relnotes_download"><info><title>Download</title></info>
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<para>
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The latest versions of BIND 9 software can always be found at
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<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.isc.org/downloads/">http://www.isc.org/downloads/</link>.
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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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</para>
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</section>
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<section xml:id="relnotes_security"><info><title>Security Fixes</title></info>
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<itemizedlist>
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<listitem>
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<para>
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If a server is configured with a response policy zone (RPZ)
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that rewrites an answer with local data, and is also configured
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for DNS64 address mapping, a NULL pointer can be read
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triggering a server crash. This flaw is disclosed in
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CVE-2017-3135. [RT #44434]
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</para>
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</listitem>
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<listitem>
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<para>
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<command>named</command> could mishandle authority sections
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with missing RRSIGs, triggering an assertion failure. This
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flaw is disclosed in CVE-2016-9444. [RT #43632]
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</para>
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</listitem>
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<listitem>
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<para>
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<command>named</command> mishandled some responses where
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covering RRSIG records were returned without the requested
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data, resulting in an assertion failure. This flaw is
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disclosed in CVE-2016-9147. [RT #43548]
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</para>
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</listitem>
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<listitem>
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<para>
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<command>named</command> incorrectly tried to cache TKEY
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records which could trigger an assertion failure when there was
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a class mismatch. This flaw is disclosed in CVE-2016-9131.
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[RT #43522]
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</para>
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</listitem>
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<listitem>
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<para>
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It was possible to trigger assertions when processing
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responses containing answers of type DNAME. This flaw is
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disclosed in CVE-2016-8864. [RT #43465]
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</para>
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</listitem>
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<listitem>
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<para>
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Added the ability to specify the maximum number of records
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permitted in a zone (<option>max-records #;</option>).
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This provides a mechanism to block overly large zone
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transfers, which is a potential risk with slave zones from
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other parties, as described in CVE-2016-6170.
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[RT #42143]
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</para>
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</listitem>
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<listitem>
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<para>
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It was possible to trigger an assertion when rendering a
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message using a specially crafted request. This flaw is
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disclosed in CVE-2016-2776. [RT #43139]
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</para>
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</listitem>
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<listitem>
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<para>
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Calling <command>getrrsetbyname()</command> with a non-
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absolute name could trigger an infinite recursion bug in
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<command>lwresd</command> or <command>named</command> with
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<command>lwres</command> configured if, when combined with
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a search list entry from <filename>resolv.conf</filename>,
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the resulting name is too long. This flaw is disclosed in
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CVE-2016-2775. [RT #42694]
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="relnotes_changes"><info><title>Feature Changes</title></info>
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<itemizedlist>
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<listitem>
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<para>
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The ISC DNSSEC Lookaside Validation (DLV) service is scheduled
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to be disabled in 2017. A warning is now logged when
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<command>named</command> is configured to use this service,
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either explicitly or via <option>dnssec-lookaside auto;</option>.
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[RT #42207]
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</para>
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</listitem>
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<listitem>
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<para>
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If an ACL is specified with an address prefix in which the
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prefix length is longer than the address portion (for example,
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192.0.2.1/8), <command>named</command> will now log a warning.
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In future releases this will be a fatal configuration error.
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[RT #43367]
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="relnotes_bugs"><info><title>Bug Fixes</title></info>
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<itemizedlist>
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<listitem>
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<para>
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Named could deadlock there were multiple changes to
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NSEC/NSEC3 parameters for a zone being processed at the
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same time. [RT #42770]
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</para>
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</listitem>
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<listitem>
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<para>
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Named could trigger a assertion when sending notify
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messages. [RT #44019]
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</para>
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</listitem>
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<listitem>
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<para>
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Windows installs were failing due to triggering UAC without
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the installation binary being signed.
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</para>
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</listitem>
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<listitem>
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<para>
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A change in the internal binary representation of the RBT database
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node structure enabled a race condition to occur (especially when
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BIND was built with certain compilers or optimizer settings),
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leading to inconsistent database state which caused random
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assertion failures. [RT #42380]
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</para>
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</listitem>
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<listitem>
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<para>
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Referencing a nonexistent zone in a <command>response-policy</command>
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statement could cause an assertion failure during configuration.
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[RT #43787]
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</para>
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</listitem>
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<listitem>
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<para>
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<command>rndc addzone</command> could cause a crash
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when attempting to add a zone with a type other than
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<command>master</command> or <command>slave</command>.
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Such zones are now rejected. [RT #43665]
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</para>
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</listitem>
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<listitem>
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<para>
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<command>named</command> could hang when encountering log
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file names with large apparent gaps in version number (for
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example, when files exist called "logfile.0", "logfile.1",
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and "logfile.1482954169"). This is now handled correctly.
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[RT #38688]
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</para>
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</listitem>
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<listitem>
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<para>
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If a zone was updated while <command>named</command> was
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processing a query for nonexistent data, it could return
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out-of-sync NSEC3 records causing potential DNSSEC validation
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failure. [RT #43247]
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</para>
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</listitem>
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<listitem>
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<para>
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<command>named</command> could crash when loading a zone
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which had RRISG records whose expiry fields were far enough
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apart to cause an integer overflow when comparing them.
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[RT #40571]
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</para>
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</listitem>
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<listitem>
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<para>
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The <command>arpaname</command> command was not installed into
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the correct <command>prefix</command><filename>/bin</filename>
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directory. [RT #42910]
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</para>
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</listitem>
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<listitem>
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<para>
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When receiving a response from an authoritative server with
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a TTL value of zero, <command>named></command> will now only use
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that response once, to answer the currently active clients that
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were waiting for it. Previously, such response could be cached
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and reused for up to one second. [RT #42142]
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</para>
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</listitem>
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<listitem>
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<para>
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Corrected a bug in the <command>rndc</command> control channel
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that could allow a read past the end of a buffer, crashing
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<command>named</command>. Thanks to Lian Yihan for reporting
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this error.
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</para>
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</listitem>
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<listitem>
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<para>
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Reverted a change to the query logging format that was
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inadvertently backported from the 9.11 branch. [RT #43238]
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="relnotes_maint"><info><title>Maintenance</title></info>
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<itemizedlist>
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<listitem>
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<para>
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The built-in root hints have been updated to include
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IPv6 addresses for B.ROOT-SERVERS.NET (2001:500:84::b),
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E.ROOT-SERVERS.NET (2001:500:a8::e) and
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G.ROOT-SERVERS.NET (2001:500:12::d0d).
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="end_of_life"><info><title>End of Life</title></info>
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<para>
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BIND 9.9 (Extended Support Version) will be supported until
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December, 2017.
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<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.isc.org/downloads/software-support-policy/">https://www.isc.org/downloads/software-support-policy/</link>
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</para>
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</section>
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<section xml:id="relnotes_thanks"><info><title>Thank You</title></info>
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<para>
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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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<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.isc.org/donate/">http://www.isc.org/donate/</link>.
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</para>
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</section>
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</section>
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