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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200403-12">
<title>OpenLDAP DoS Vulnerability</title>
<synopsis>
A failed password operation can cause the OpenLDAP slapd server, if it is
using the back-ldbm backend, to free memory that was never allocated.
</synopsis>
<product type="ebuild">openldap</product>
<announced>March 31, 2004</announced>
<revised>May 22, 2006: 02</revised>
<bug>26728</bug>
<access>remote</access>
<affected>
<package name="net-nds/openldap" auto="yes" arch="*">
<unaffected range="ge">2.1.13</unaffected>
<vulnerable range="le">2.1.12</vulnerable>
</package>
</affected>
<background>
<p>
OpenLDAP is a suite of LDAP-related application and development tools.
It includes slapd (the standalone LDAP server), slurpd (the standalone
LDAP replication server), and various LDAP libraries, utilities and
example clients.
</p>
</background>
<description>
<p>
A password extended operation (password EXOP) which fails will cause
the slapd server to free() an uninitialized pointer, possibly resulting
in a segfault. This only affects servers using the back-ldbm backend.
</p>
<p>
Such a crash is not guaranteed with every failed operation, however, it
is possible.
</p>
</description>
<impact type="normal">
<p>
An attacker (or indeed, a normal user) may crash the OpenLDAP server,
creating a Denial of Service condition.
</p>
</impact>
<workaround>
<p>
A workaround is not currently known for this issue. All users are
advised to upgrade to the latest version of the affected package.
</p>
</workaround>
<resolution>
<p>
OpenLDAP users should upgrade to version 2.1.13 or later:
</p>
<code>
# emerge sync
# emerge -pv &quot;&gt;=net-nds/openldap-2.1.13&quot;
# emerge &quot;&gt;=net-nds/openldap-2.1.13&quot;</code>
</resolution>
<references>
<uri link="http://www.openldap.org/its/index.cgi?findid=2390">OpenLDAP ITS Bug and Patch</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-1201">CVE-2003-1201</uri>
</references>
<metadata tag="submitter" timestamp="Mon, 22 May 2006 05:51:37 +0000">
DerCorny
</metadata>
</glsa>