glsa-200705-10.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200705-10">
  <title>LibXfont, TightVNC: Multiple vulnerabilities</title>
  <synopsis>
    Multiple vulnerabilities have been reported in libXfont and TightVNC,
    allowing for the execution of arbitrary code with root privileges.
  </synopsis>
  <product type="ebuild">tightvnc, libxfont</product>
  <announced>2007-05-08</announced>
  <revised count="01">2007-05-08</revised>
  <bug>172575</bug>
  <bug>174200</bug>
  <access>local</access>
  <affected>
    <package name="net-misc/tightvnc" auto="yes" arch="*">
      <unaffected range="ge">1.2.9-r4</unaffected>
      <vulnerable range="lt">1.2.9-r4</vulnerable>
    </package>
    <package name="x11-libs/libXfont" auto="yes" arch="*">
      <unaffected range="ge">1.2.7-r1</unaffected>
      <vulnerable range="lt">1.2.7-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    LibXfont is the X.Org font library. TightVNC is a VNC client/server for
    X displays.
    </p>
  </background>
  <description>
    <p>
    The libXfont code is prone to several integer overflows, in functions
    ProcXCMiscGetXIDList(), bdfReadCharacters() and FontFileInitTable().
    TightVNC contains a local copy of this code and is also affected.
    </p>
  </description>
  <impact type="high">
    <p>
    A local attacker could use a specially crafted BDF Font to gain root
    privileges on the vulnerable host.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All libXfont users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=x11-libs/libXfont-1.2.7-r1"</code>
    <p>
    All TightVNC users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-misc/tightvnc-1.2.9-r4"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1003">CVE-2007-1003</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1351">CVE-2007-1351</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1352">CVE-2007-1352</uri>
  </references>
  <metadata tag="requester" timestamp="2007-04-17T09:12:59Z">
    jaervosz
  </metadata>
  <metadata tag="bugReady" timestamp="2007-04-23T12:11:04Z">
    vorlon
  </metadata>
  <metadata tag="submitter" timestamp="2007-04-26T19:02:32Z">
    p-y
  </metadata>
</glsa>