<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202009-14">
  <title>Xen: Buffer overflow</title>
  <synopsis>A buffer overflow in Xen might allow remote attacker(s) to execute
    arbitrary code.
  </synopsis>
  <product type="ebuild">xen</product>
  <announced>2020-09-29</announced>
  <revised count="1">2020-09-29</revised>
  <bug>738040</bug>
  <access>local, remote</access>
  <affected>
    <package name="app-emulation/xen" auto="yes" arch="*">
      <unaffected range="ge">4.13.1-r3</unaffected>
      <vulnerable range="lt">4.13.1-r3</vulnerable>
    </package>
    <package name="app-emulation/xen-tools" auto="yes" arch="*">
      <unaffected range="ge">4.13.1-r3</unaffected>
      <vulnerable range="lt">4.13.1-r3</vulnerable>
    </package>
  </affected>
  <background>
    <p>Xen is a bare-metal hypervisor.</p>
  </background>
  <description>
    <p>An out-of-bounds read/write access issue was found in the USB emulator
      when using QEMU.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could possibly execute arbitrary code with the
      privileges of the process or cause a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Xen users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-emulation/xen-4.13.1-r3"
    </code>
    
    <p>All Xen tools users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose
      "&gt;=app-emulation/xen-tools-4.13.1-r3"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-14364">CVE-2020-14364</uri>
    <uri link="https://xenbits.xen.org/xsa/advisory-335.html">XSA-335</uri>
  </references>
  <metadata tag="requester" timestamp="2020-09-23T03:24:25Z">sam_c</metadata>
  <metadata tag="submitter" timestamp="2020-09-29T18:05:39Z">sam_c</metadata>
</glsa>
