[v9_10] add notes
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@@ -39,7 +39,42 @@
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<title>Security Fixes</title>
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<itemizedlist>
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<listitem>
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<para>None</para>
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<para>
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A flaw in delegation handling could be exploited to put
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<command>named</command> into an infinite loop, in which
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each lookup of a name server triggered additional lookups
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of more name servers. This has been addressed by placing
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limits on the number of levels of recursion
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<command>named</command> will allow (default 7), and
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on the number of queries that it will send before
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terminating a recursive query (default 50).
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</para>
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<para>
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The recursion depth limit is configured via the
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<option>max-recursion-depth</option> option, and the query limit
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via the <option>max-recursion-queries</option> option.
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</para>
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<para>
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The flaw was discovered by Florian Maury of ANSSI, and is
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disclosed in CVE-2014-8500. [RT #37580]
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</para>
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</listitem>
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<listitem>
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<para>
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Two separate problems were identified in BIND's GeoIP code that
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could lead to an assertion failure. One was triggered by use of
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both IPv4 and IPv6 address families, the other by referencing
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a GeoIP database in <filename>named.conf</filename> which was
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not installed. Both are covered by CVE-2014-8680. [RT #37672]
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[RT #37679]
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</para>
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<para>
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A less serious security flaw was also found in GeoIP: changes
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to the <command>geoip-directory</command> option in
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<filename>named.conf</filename> were ignored when running
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<command>rndc reconfig</command>. In theory, this could allow
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<command>named</command> to allow access to unintended clients.
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</para>
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</listitem>
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</itemizedlist>
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</sect2>
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