glsa-201711-11.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201711-11">
  <title>VDE: Privilege escalation</title>
  <synopsis>A vulnerability was discovered in VDE which may allow local users
    to gain root privileges.
  </synopsis>
  <product type="ebuild">vde</product>
  <announced>2017-11-12</announced>
  <revised count="1">2017-11-12</revised>
  <bug>603382</bug>
  <access>local</access>
  <affected>
    <package name="net-misc/vde" auto="yes" arch="*">
      <unaffected range="ge">2.3.2-r4</unaffected>
      <vulnerable range="lt">2.3.2-r4</vulnerable>
    </package>
  </affected>
  <background>
    <p>VDE is an ethernet compliant virtual network that can be spawned over a
      set of physical computer over the Internet.
    </p>
  </background>
  <description>
    <p>It was discovered that Gentoo’s default VDE installation suffered from
      a privilege escalation vulnerability in the init script. This script
      calls an unsafe ‘chown’ command which gives members from “qemu”
      group root privileges.
    </p>
  </description>
  <impact type="normal">
    <p>A local attacker could escalate privileges to root.</p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All VDE users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=net-misc/vde-2.3.2-r4"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-16638">
      CVE-2017-16638
    </uri>
  </references>
  <metadata tag="requester" timestamp="2017-11-07T14:12:38Z">chrisadr</metadata>
  <metadata tag="submitter" timestamp="2017-11-12T22:28:58Z">chrisadr</metadata>
</glsa>