glsa-200907-03.xml


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

<glsa id="200907-03">
  <title>APR Utility Library: Multiple vulnerabilities</title>
  <synopsis>
    Multiple vulnerabilities in the Apache Portable Runtime Utility Library
    might enable remote attackers to cause a Denial of Service or disclose
    sensitive information.
  </synopsis>
  <product type="ebuild">apr-util</product>
  <announced>July 04, 2009</announced>
  <revised>July 04, 2009: 01</revised>
  <bug>268643</bug>
  <bug>272260</bug>
  <bug>274193</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/apr-util" auto="yes" arch="*">
      <unaffected range="ge">1.3.7</unaffected>
      <vulnerable range="lt">1.3.7</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    The Apache Portable Runtime Utility Library (aka apr-util) provides an
    interface to functionality such as XML parsing, string matching and
    databases connections.
    </p>
  </background>
  <description>
    <p>
    Multiple vulnerabilities have been discovered in the APR Utility
    Library:
    </p>
    <ul>
    <li>Matthew Palmer reported a heap-based buffer
    underflow while compiling search patterns in the
    apr_strmatch_precompile() function in strmatch/apr_strmatch.c
    (CVE-2009-0023).</li>
    <li>kcope reported that the expat XML parser in
    xml/apr_xml.c does not limit the amount of XML entities expanded
    recursively (CVE-2009-1955).</li>
    <li>C. Michael Pilato reported an
    off-by-one error in the apr_brigade_vprintf() function in
    buckets/apr_brigade.c (CVE-2009-1956).</li>
    </ul>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could exploit these vulnerabilities to cause a Denial
    of Service (crash or memory exhaustion) via an Apache HTTP server
    running mod_dav or mod_dav_svn, or using several configuration files.
    Additionally, a remote attacker could disclose sensitive information or
    cause a Denial of Service by sending a specially crafted input. NOTE:
    Only big-endian architectures such as PPC and HPPA are affected by the
    latter flaw.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Apache Portable Runtime Utility Library users should upgrade to the
    latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=dev-libs/apr-util-1.3.7&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0023">CVE-2009-0023</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1955">CVE-2009-1955</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1956">CVE-2009-1956</uri>
  </references>
  <metadata tag="requester" timestamp="Fri, 26 Jun 2009 08:48:34 +0000">
    a3li
  </metadata>
  <metadata tag="submitter" timestamp="Sun, 28 Jun 2009 12:16:58 +0000">
    a3li
  </metadata>
  <metadata tag="bugReady" timestamp="Sat, 04 Jul 2009 07:45:32 +0000">
    a3li
  </metadata>
</glsa>