glsa-202007-38.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202007-38">
  <title>QtGui: Arbitrary code execution</title>
  <synopsis>A use-after-free was discovered in QtGui's Markdown handling code
    possibly allowing a remote attacker to execute arbitrary code.
  </synopsis>
  <product type="ebuild">qtgui</product>
  <announced>2020-07-27</announced>
  <revised count="1">2020-07-27</revised>
  <bug>719732</bug>
  <access>remote</access>
  <affected>
    <package name="dev-qt/qtgui" auto="yes" arch="*">
      <unaffected range="ge">5.14.2</unaffected>
      <vulnerable range="lt">5.14.2</vulnerable>
    </package>
  </affected>
  <background>
    <p>QtGui is a module for the Qt toolkit.</p>
  </background>
  <description>
    <p>QtGui’s setMarkdown has a use-after-free related to
      QTextMarkdownImporter::insertBlock.
    </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 QtGui users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-qt/qtgui-5.14.2"
    </code>
    
    <p>Note that the Qt suite is best kept in sync, so a world upgrade may be
      advisable to keep your system in a good state.
    </p>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-12267">CVE-2020-12267</uri>
  </references>
  <metadata tag="requester" timestamp="2020-06-06T21:54:28Z">sam_c</metadata>
  <metadata tag="submitter" timestamp="2020-07-27T00:37:49Z">sam_c</metadata>
</glsa>