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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>March 19, 2008</announced>
<revised>March 19, 2008: 01</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 &quot;&gt;=net-nds/openldap-2.3.41&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5707">CVE-2007-5707</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5708">CVE-2007-5708</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0658">CVE-2008-0658</uri>
</references>
<metadata tag="submitter" timestamp="Sat, 15 Mar 2008 17:57:19 +0000">
mfleming
</metadata>
<metadata tag="bugReady" timestamp="Wed, 19 Mar 2008 01:23:44 +0000">
rbu
</metadata>
</glsa>