glsa-201701-26.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201701-26">
  <title>BIND: Denial of Service</title>
  <synopsis>A vulnerability in BIND might allow remote attackers to cause a
    Denial of Service condition.
  </synopsis>
  <product type="ebuild">bind</product>
  <announced>2017-01-11</announced>
  <revised count="1">2017-01-11</revised>
  <bug>598750</bug>
  <access>remote</access>
  <affected>
    <package name="net-dns/bind" auto="yes" arch="*">
      <unaffected range="ge">9.10.4_p4</unaffected>
      <vulnerable range="lt">9.10.4_p4</vulnerable>
    </package>
  </affected>
  <background>
    <p>BIND (Berkeley Internet Name Domain) is a Name Server.</p>
  </background>
  <description>
    <p>A defect in BIND’s handling of responses containing a DNAME answer can
      cause a resolver to exit after encountering an assertion failure in db.c
      or resolver.c.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could send a specially crafted DNS request to the BIND
      resolver possibly resulting in a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All BIND users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=net-dns/bind-9.10.4_p4"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-8864">CVE-2016-8864</uri>
  </references>
  <metadata tag="requester" timestamp="2017-01-04T02:59:06Z">b-man</metadata>
  <metadata tag="submitter" timestamp="2017-01-11T12:27:02Z">whissi</metadata>
</glsa>