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RHEL 5 : openldap (RHSA-2011:0346)

medium Nessus Plugin ID 52627

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated openldap packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

OpenLDAP is an open source suite of LDAP (Lightweight Directory Access Protocol) applications and development tools.

A flaw was found in the way OpenLDAP handled authentication failures being passed from an OpenLDAP slave to the master. If OpenLDAP was configured with a chain overlay and it forwarded authentication failures, OpenLDAP would bind to the directory as an anonymous user and return success, rather than return failure on the authenticated bind. This could allow a user on a system that uses LDAP for authentication to log into a directory-based account without knowing the password. (CVE-2011-1024)

This update also fixes the following bug :

* Previously, multiple concurrent connections to an OpenLDAP server could cause the slapd service to terminate unexpectedly with an assertion error. This update adds mutexes to protect multiple threads from accessing a structure with a connection, and the slapd service no longer crashes. (BZ#677611)

Users of OpenLDAP should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing this update, the OpenLDAP daemons will be restarted automatically.

Solution

Update the affected packages.

See Also

https://access.redhat.com/security/cve/cve-2011-1024

https://access.redhat.com/errata/RHSA-2011:0346

Plugin Details

Severity: Medium

ID: 52627

File Name: redhat-RHSA-2011-0346.nasl

Version: 1.20

Type: local

Agent: unix

Published: 3/11/2011

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:5, cpe:/o:redhat:enterprise_linux:5.6, p-cpe:/a:redhat:enterprise_linux:openldap-devel, p-cpe:/a:redhat:enterprise_linux:openldap-clients, p-cpe:/a:redhat:enterprise_linux:openldap-servers-sql, p-cpe:/a:redhat:enterprise_linux:compat-openldap, p-cpe:/a:redhat:enterprise_linux:openldap-servers-overlays, p-cpe:/a:redhat:enterprise_linux:openldap-servers, p-cpe:/a:redhat:enterprise_linux:openldap

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/10/2011

Vulnerability Publication Date: 3/19/2011

Reference Information

CVE: CVE-2011-1024, CVE-2011-1025, CVE-2011-1081

RHSA: 2011:0346