<?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 ">=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>