glsa-201702-19.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201702-19">
  <title>TigerVNC: Buffer overflow</title>
  <synopsis>A buffer overflow in TigerVNC might allow remote attackers to
    execute arbitrary code.
  </synopsis>
  <product type="ebuild">tigervnc</product>
  <announced>2017-02-20</announced>
  <revised count="1">2017-02-20</revised>
  <bug>606998</bug>
  <access>remote</access>
  <affected>
    <package name="net-misc/tigervnc" auto="yes" arch="*">
      <unaffected range="ge">1.7.1</unaffected>
      <vulnerable range="lt">1.7.1</vulnerable>
    </package>
  </affected>
  <background>
    <p>TigerVNC is a high-performance VNC server/client.</p>
  </background>
  <description>
    <p>A buffer overflow vulnerability in ModifiablePixelBuffer::fillRect in
      vncviewer was found.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker, utilizing a malicious VNC server, could execute
      arbitrary code with the privileges of the user running the client or
      cause a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All TigerVNC users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=net-misc/tigervnc-1.7.1"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5581">CVE-2017-5581</uri>
  </references>
  <metadata tag="requester" timestamp="2017-02-13T02:16:26Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2017-02-20T23:29:04Z">whissi</metadata>
</glsa>