glsa-200611-25.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200611-25">
  <title>OpenLDAP: Denial of Service vulnerability</title>
  <synopsis>
    A flaw in OpenLDAP allows remote unauthenticated attackers to cause a
    Denial of Service.
  </synopsis>
  <product type="ebuild">openldap</product>
  <announced>2006-11-28</announced>
  <revised count="01">2006-11-28</revised>
  <bug>154349</bug>
  <access>remote</access>
  <affected>
    <package name="net-nds/openldap" auto="yes" arch="*">
      <unaffected range="ge">2.3.27-r3</unaffected>
      <unaffected range="rge">2.2.28-r5</unaffected>
      <unaffected range="rge">2.1.30-r8</unaffected>
      <vulnerable range="lt">2.3.27-r3</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    OpenLDAP is a suite of LDAP-related applications and development tools.
    </p>
  </background>
  <description>
    <p>
    Evgeny Legerov has discovered that the truncation of an incoming
    authcid longer than 255 characters and ending with a space as the 255th
    character will lead to an improperly computed name length. This will
    trigger an assert in the libldap code.
    </p>
  </description>
  <impact type="normal">
    <p>
    By sending a BIND request with a specially crafted authcid parameter to
    an OpenLDAP service, a remote attacker can cause the service to crash.
    </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 "net-nds/openldap"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5779">CVE-2006-5779</uri>
  </references>
  <metadata tag="requester" timestamp="2006-11-27T13:22:56Z">
    jaervosz
  </metadata>
  <metadata tag="submitter" timestamp="2006-11-27T16:35:57Z">
    falco
  </metadata>
  <metadata tag="bugReady" timestamp="2006-11-27T16:37:27Z">
    falco
  </metadata>
</glsa>