<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202008-15">
  <title>Docker: Information disclosure</title>
  <synopsis>A flaw in Docker allowed possible information leakage.</synopsis>
  <product type="ebuild">docker</product>
  <announced>2020-08-26</announced>
  <revised count="1">2020-08-26</revised>
  <bug>729208</bug>
  <access>local</access>
  <affected>
    <package name="app-emulation/docker" auto="yes" arch="*">
      <unaffected range="ge">19.03.12</unaffected>
      <vulnerable range="lt">19.03.12</vulnerable>
    </package>
  </affected>
  <background>
    <p>Docker is the world’s leading software containerization platform.</p>
  </background>
  <description>
    <p>It was found that Docker created network bridges which by default accept
      IPv6 router advertisements.
    </p>
  </description>
  <impact type="normal">
    <p>An attacker who gained access to a container with CAP_NET_RAW capability
      may be able to to spoof router advertisements, resulting in information
      disclosure or denial of service.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Docker users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-emulation/docker-19.03.12"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-13401">CVE-2020-13401</uri>
  </references>
  <metadata tag="requester" timestamp="2020-08-26T14:40:16Z">sam_c</metadata>
  <metadata tag="submitter" timestamp="2020-08-26T21:33:28Z">sam_c</metadata>
</glsa>
