<?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 ">=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>