<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="201507-16"> <title>Portage: Man-in-the-middle attack</title> <synopsis>A vulnerability in Portage's urlopen function could allow a remote attacker to conduct a man-in-the-middle attack. </synopsis> <product type="ebuild">portage</product> <announced>2015-07-10</announced> <revised count="2">2015-07-10</revised> <bug>469888</bug> <access>remote</access> <affected> <package name="sys-apps/portage" auto="yes" arch="*"> <unaffected range="ge">2.1.12.2</unaffected> <vulnerable range="lt">2.1.12.2</vulnerable> </package> </affected> <background> <p>Portage is the package management and distribution system for Gentoo.</p> </background> <description> <p>Portage does not verify X.509 SSL certificates properly if HTTPS is used. </p> </description> <impact type="normal"> <p>A remote attacker can spoof servers and modify binary package lists via specially crafted certificates. </p> </impact> <workaround> <p>There is no known workaround at this time.</p> </workaround> <resolution> <p>All Portage users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/portage-2.1.12.2" </code> </resolution> <references> <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2100">CVE-2013-2100</uri> </references> <metadata tag="requester" timestamp="2015-05-11T16:42:59Z">K_F</metadata> <metadata tag="submitter" timestamp="2015-07-10T13:59:39Z">Zlogene</metadata> </glsa>