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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the openldap packages
Detailed Explanation for this Vulnerability Assessment
Updated OpenLDAP packages are available which fix a number of local and
remote buffer overflows in libldap as well as the slapd and slurpd daemons.
Additionally, potential issues stemming from using user-specified LDAP
configuration files have been addressed.
[Updated 06 Feb 2003]
Added fixed packages for Red Hat Linux Advanced Workstation 2.1
[Updated 13 Aug 2003]
Added openldap12 packages for Red Hat Linux Advanced Server 2.1
and Advanced Workstation 2.1 that were originally left out of this errata.
OpenLDAP is a suite of LDAP (Lightweight Directory Access Protocol)
applications and development tools. LDAP is a set of protocols for
accessing directory services. In an audit of OpenLDAP by SuSE, a number of
potential security issues were found.
The following is a list of these issues:
When reading configuration files, libldap reads the current user's .ldaprc
file even in applications being run with elevated rights.
Slurpd would overflow an internal buffer if the command-line argument used
with the -t or -r flags is too long, or if the name of a file for which it
attempted to create an advisory lock is too long.
When parsing filters, the getfilter family of functions from libldap can
overflow an internal buffer by supplying a carefully crafted
When processing LDAP entry display templates, libldap can overflow an
internal buffer by supplying a carefully crafted ldaptemplates.conf file.
When parsing an access control list, slapd can overflow an internal buffer.
When constructing the name of the file used for logging rejected
replication requests, slapd overflows an internal buffer if the size
of the generated name is too large. It can also destroy the contents of any
file owned by the user 'ldap' due to a race condition in the subsequent
creation of the log file.
All of these potential security issues are corrected by the packages
contained within this erratum.
Red Hat Linux Advanced Server users who use LDAP are advised to
install the updated OpenLDAP packages contained within this erratum.
Solution : http://rhn.redhat.com/errata/RHSA-2002-312.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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