glsa-200801-20.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200801-20">
  <title>libxml2: Denial of service</title>
  <synopsis>
    A Denial of Service vulnerability has been reported in libxml2.
  </synopsis>
  <product type="ebuild">libxml2</product>
  <announced>2008-01-30</announced>
  <revised count="01">2008-01-30</revised>
  <bug>202628</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/libxml2" auto="yes" arch="*">
      <unaffected range="ge">2.6.30-r1</unaffected>
      <vulnerable range="lt">2.6.30-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    libxml2 is the XML (eXtended Markup Language) C parser and toolkit
    initially developed for the Gnome project.
    </p>
  </background>
  <description>
    <p>
    Brad Fitzpatrick reported that the xmlCurrentChar() function does not
    properly handle some UTF-8 multibyte encodings.
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could entice a user to open a specially crafted XML
    document with an application using libxml2, possibly resulting in a
    high CPU consumption. Note that this vulnerability could also be
    triggered without user interaction by an automated system processing
    XML content.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All libxml2 users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=dev-libs/libxml2-2.6.30-r1"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6284">CVE-2007-6284</uri>
  </references>
  <metadata tag="requester" timestamp="2008-01-12T01:14:43Z">
    rbu
  </metadata>
  <metadata tag="submitter" timestamp="2008-01-28T19:48:32Z">
    p-y
  </metadata>
  <metadata tag="bugReady" timestamp="2008-01-28T19:48:45Z">
    p-y
  </metadata>
</glsa>