glsa-200803-28.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200803-28">
  <title>OpenLDAP: Denial of Service vulnerabilities</title>
  <synopsis>
    Multiple Denial of Service vulnerabilities have been reported in OpenLDAP.
  </synopsis>
  <product type="ebuild">openldap</product>
  <announced>2008-03-19</announced>
  <revised count="01">2008-03-19</revised>
  <bug>197446</bug>
  <bug>209677</bug>
  <access>remote</access>
  <affected>
    <package name="net-nds/openldap" auto="yes" arch="*">
      <unaffected range="ge">2.3.41</unaffected>
      <vulnerable range="lt">2.3.41</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    OpenLDAP Software is an open source implementation of the Lightweight
    Directory Access Protocol.
    </p>
  </background>
  <description>
    <p>
    The following errors have been discovered in OpenLDAP:
    </p>
    <ul>
    <li>
    Tony Blake discovered an error which exists within the normalisation of
    "objectClasses" (CVE-2007-5707).</li>
    <li>
    Thomas Sesselmann reported that, when running as a proxy-caching server
    the "add_filter_attrs()" function in servers/slapd/overlay/pcache.c
    does not correctly NULL terminate "new_attrs" (CVE-2007-5708).</li>
    <li>
    A double-free bug exists in attrs_free() in the file
    servers/slapd/back-bdb/modrdn.c, which was discovered by Jonathan
    Clarke (CVE-2008-0658).</li>
    </ul>
  </description>
  <impact type="normal">
    <p>
    A remote attacker can cause a Denial of Serivce by sending a malformed
    "objectClasses" attribute, and via unknown vectors that prevent the
    "new_attrs" array from being NULL terminated, and via a modrdn
    operation with a NOOP (LDAP_X_NO_OPERATION) control.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All OpenLDAP users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-nds/openldap-2.3.41"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5707">CVE-2007-5707</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5708">CVE-2007-5708</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0658">CVE-2008-0658</uri>
  </references>
  <metadata tag="submitter" timestamp="2008-03-15T17:57:19Z">
    mfleming
  </metadata>
  <metadata tag="bugReady" timestamp="2008-03-19T01:23:44Z">
    rbu
  </metadata>
</glsa>