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<section xml:id="relnotes-9.11.2"><info><title>Notes for BIND 9.11.2</title></info>

  <section xml:id="relnotes-9.11.2-security"><info><title>Security Fixes</title></info>
    <itemizedlist>
      <listitem>
        <para>
          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]
        </para>
      </listitem>
      <listitem>
        <para>
          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]
        </para>
      </listitem>
      <listitem>
        <para>
          With certain RPZ configurations, a response with TTL 0
          could cause <command>named</command> to go into an infinite
          query loop. This flaw is disclosed in CVE-2017-3140.
          [RT #45181]
        </para>
      </listitem>
    </itemizedlist>
  </section>

  <section xml:id="relnotes-9.11.2-changes"><info><title>Feature Changes</title></info>
    <itemizedlist>
      <listitem>
        <para>
          <command>dig +ednsopt</command> now accepts the names
          for EDNS options in addition to numeric values. For example,
          an EDNS Client-Subnet option could be sent using
          <command>dig +ednsopt=ecs:...</command>. Thanks to
          John Worley of Secure64 for the contribution. [RT #44461]
        </para>
      </listitem>
      <listitem>
        <para>
          Threads in <command>named</command> 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 <command>ps</command> and
          <command>top</command>, but not the main thread. [RT #43234]
        </para>
      </listitem>
      <listitem>
        <para>
          DiG now warns about .local queries which are reserved for
          Multicast DNS. [RT #44783]
        </para>
      </listitem>
    </itemizedlist>
  </section>

  <section xml:id="relnotes-9.11.2-bugs"><info><title>Bug Fixes</title></info>
    <itemizedlist>
      <listitem>
        <para>
          Fixed a bug that was introduced in an earlier development
          release which caused multi-packet AXFR and IXFR messages to fail
          validation if not all packets contained TSIG records; this
          caused interoperability problems with some other DNS
          implementations. [RT #45509]
        </para>
      </listitem>
      <listitem>
        <para>
          Reloading or reconfiguring <command>named</command> could
          fail on some platforms when LMDB was in use. [RT #45203]
        </para>
      </listitem>
      <listitem>
        <para>
          Due to some incorrectly deleted code, when BIND was
          built with LMDB, zones that were deleted via
          <command>rndc delzone</command> 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]
        </para>
      </listitem>
      <listitem>
        <para>
          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]
        </para>
      </listitem>
      <listitem>
        <para>
          AD could be set on truncated answer with no records present
          in the answer and authority sections. [RT #45140]
        </para>
      </listitem>
    </itemizedlist>
  </section>

</section>
