glsa-201711-09.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201711-09">
  <title>LXC: Remote security bypass</title>
  <synopsis>A vulnerability in LXC may lead to an unauthorized security bypass.</synopsis>
  <product type="ebuild">lxc</product>
  <announced>2017-11-11</announced>
  <revised count="1">2017-11-11</revised>
  <bug>636386</bug>
  <access>remote</access>
  <affected>
    <package name="app-emulation/lxc" auto="yes" arch="*">
      <unaffected range="ge">2.0.7</unaffected>
      <vulnerable range="lt">2.0.7</vulnerable>
    </package>
  </affected>
  <background>
    <p>LinuX Containers userspace utilities</p>
  </background>
  <description>
    <p>Previous versions of lxc-attach ran a shell or the specified command
      without allocating a pseudo terminal making it vulnerable to input faking
      via a TIOCSTI ioctl call.
    </p>
  </description>
  <impact type="normal">
    <p>Remote attackers can escape the container and perform unauthorized
      modifications.
    </p>
  </impact>
  <workaround>
    <p>There is no know workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All LXC users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-emulation/lxc-2.0.7"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10124">
      CVE-2016-10124
    </uri>
  </references>
  <metadata tag="requester" timestamp="2017-11-08T15:29:35Z">jmbailey</metadata>
  <metadata tag="submitter" timestamp="2017-11-11T15:11:34Z">jmbailey</metadata>
</glsa>