metadata/glsa/glsa-200612-05.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200612-05">
  <title>KOffice shared libraries: Heap corruption</title>
  <synopsis>
    An integer overflow in koffice-libs allows for a Denial of Service and
    possibly the execution of arbitrary code when viewing malicious PowerPoint
    files.
  </synopsis>
  <product type="ebuild">koffice-libs</product>
  <announced>December 10, 2006</announced>
  <revised>December 10, 2006: 01</revised>
  <bug>155914</bug>
  <access>remote</access>
  <affected>
    <package name="app-office/koffice-libs" auto="yes" arch="*">
      <unaffected range="ge">1.5.0</unaffected>
      <vulnerable range="lt">1.5.0</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    KOffice is an integrated office suite for KDE. koffice-libs is a
    package containing shared librares used by KOffice programs.
    </p>
  </background>
  <description>
    <p>
    Kees Cook of Ubuntu discovered that 'KLaola::readBigBlockDepot()' in
    klaola.cc fills 'num_of_bbd_blocks' while reading a .ppt (PowerPoint)
    file without proper sanitizing, resulting in an integer overflow
    subsequently overwriting the heap with parts of the file being read.
    </p>
  </description>
  <impact type="normal">
    <p>
    By enticing a user to open a specially crafted PowerPoint file, an
    attacker could crash the application and possibly execute arbitrary
    code with the rights of the user running KOffice.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All koffice-libs users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=app-office/koffice-libs-1.5.0&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6120">CVE-2006-6120</uri>
  </references>
  <metadata tag="requester" timestamp="Fri, 01 Dec 2006 20:55:38 +0000">
    DerCorny
  </metadata>
  <metadata tag="submitter" timestamp="Fri, 01 Dec 2006 21:30:45 +0000">
    frilled
  </metadata>
  <metadata tag="bugReady" timestamp="Sun, 10 Dec 2006 13:39:48 +0000">
    jaervosz
  </metadata>
</glsa>