glsa-202009-12.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202009-12">
  <title>ZeroMQ: Denial of service</title>
  <synopsis>A vulnerability in ZeroMQ could lead to a Denial of Service
    condition.
  </synopsis>
  <product type="ebuild">zeromq</product>
  <announced>2020-09-13</announced>
  <revised count="1">2020-09-13</revised>
  <bug>740574</bug>
  <access>local, remote</access>
  <affected>
    <package name="net-libs/zeromq" auto="yes" arch="*">
      <unaffected range="ge">4.3.3</unaffected>
      <vulnerable range="lt">4.3.3</vulnerable>
    </package>
  </affected>
  <background>
    <p>Looks like an embeddable networking library but acts like a concurrency
      framework.
    </p>
  </background>
  <description>
    <p>It was discovered that ZeroMQ does not properly handle connecting peers
      before a handshake is completed.
    </p>
  </description>
  <impact type="normal">
    <p>An unauthenticated remote attacker able to connect to a ZeroMQ endpoint,
      even with CURVE encryption/authentication enabled, can cause a Denial of
      Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All ZeroMQ users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=net-libs/zeromq-4.3.3"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-15166">CVE-2020-15166</uri>
  </references>
  <metadata tag="requester" timestamp="2020-09-12T19:44:05Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2020-09-13T23:27:38Z">whissi</metadata>
</glsa>