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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 nss_ldap packages
Detailed Explanation for this Vulnerability Assessment
Updated nss_ldap packages that fix a security flaw are now available for
Red Hat Enterprise Linux 4.
This update has been rated as having moderate security impact by the Red
Security Response Team.
nss_ldap is a set of C library extensions that permit X.500 and LDAP
directory servers to be used as primary sources for aliases, ethers,
groups, hosts, networks, protocols, users, RPCs, services, and shadow
A flaw was found in the way nss_ldap handled a PasswordPolicyResponse
control sent by an LDAP server. If an LDAP server responded to an
authentication request with a PasswordPolicyResponse control, it was
possible for an application using nss_ldap to improperly authenticate
certain users. (CVE-2006-5170)
This flaw was only exploitable within applications which did not properly
process nss_ldap error messages. Only xscreensaver is currently known to
exhibit this behavior.
All users of nss_ldap should upgrade to these updated packages, which
contain a backported patch that resolves this issue.
Solution : http://rhn.redhat.com/errata/RHSA-2006-0719.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2006 Tenable Network Security
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