glsa-200903-17.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200903-17">
  <title>Real VNC: User-assisted execution of arbitrary code</title>
  <synopsis>
    The Real VNC client is vulnerable to execution of arbitrary code when
    connecting to a malicious server.
  </synopsis>
  <product type="ebuild">vnc</product>
  <announced>2009-03-09</announced>
  <revised count="01">2009-03-09</revised>
  <bug>255225</bug>
  <access>remote</access>
  <affected>
    <package name="net-misc/vnc" auto="yes" arch="*">
      <unaffected range="ge">4.1.3</unaffected>
      <vulnerable range="lt">4.1.3</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Real VNC is a remote desktop viewer display system.
    </p>
  </background>
  <description>
    <p>
    An unspecified vulnerability has been discovered int the
    CMsgReader::readRect() function in the VNC Viewer component, related to
    the encoding type of RFB protocol data.
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could entice a user to connect to a malicious VNC
    server, or leverage Man-in-the-Middle attacks, to cause the execution
    of arbitrary code with the privileges of the user running the VNC
    viewer.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Real VNC users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-misc/vnc-4.1.3"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4770">CVE-2008-4770</uri>
  </references>
  <metadata tag="requester" timestamp="2009-01-28T00:30:00Z">
    keytoaster
  </metadata>
  <metadata tag="submitter" timestamp="2009-02-12T16:35:19Z">
    rbu
  </metadata>
  <metadata tag="bugReady" timestamp="2009-02-12T16:35:29Z">
    rbu
  </metadata>
</glsa>