Security update for bind (important)

This bind update to version 9.6-ESV-R11-W1 fixes the following security
issue:

   * A flaw in delegation handling could be exploited to put named into
     an infinite loop. This has been addressed by placing limits on the
     number of levels of recursion named will allow (default 7), and the
     number of iterative queries that it will send (default 50) before
     terminating a recursive query (CVE-2014-8500, bnc#908994). The
     recursion depth limit is configured via the "max-recursion-depth"
     option, and the query limit via the "max-recursion-queries" option.

Security Issues:

   * CVE-2014-8500
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8500">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8500</a>&gt;