Executive Summary

Summary
Title openldap security and bug fix update
Informations
Name RHSA-2011:0346 First vendor Publication 2011-03-10
Vendor RedHat Last vendor Modification 2011-03-10
Severity (Vendor) Moderate Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:S/C:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity High
Cvss Expoit Score 3.9 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Problem 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.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

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.

4. Solution:

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

680466 - CVE-2011-1024 openldap: forwarded bind failure messages cause success

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2011-0346.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:21865
 
Oval ID: oval:org.mitre.oval:def:21865
Title: RHSA-2011:0346: openldap security and bug fix update (Moderate)
Description: chain.c in back-ldap in OpenLDAP 2.4.x before 2.4.24, when a master-slave configuration with a chain overlay and ppolicy_forward_updates (aka authentication-failure forwarding) is used, allows remote authenticated users to bypass external-program authentication by sending an invalid password to a slave server.
Family: unix Class: patch
Reference(s): RHSA-2011:0346-01
CESA-2011:0346
CVE-2011-1024
Version: 4
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): openldap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23088
 
Oval ID: oval:org.mitre.oval:def:23088
Title: ELSA-2011:0346: openldap security and bug fix update (Moderate)
Description: chain.c in back-ldap in OpenLDAP 2.4.x before 2.4.24, when a master-slave configuration with a chain overlay and ppolicy_forward_updates (aka authentication-failure forwarding) is used, allows remote authenticated users to bypass external-program authentication by sending an invalid password to a slave server.
Family: unix Class: patch
Reference(s): ELSA-2011:0346-01
CVE-2011-1024
Version: 6
Platform(s): Oracle Linux 5
Product(s): openldap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27370
 
Oval ID: oval:org.mitre.oval:def:27370
Title: DEPRECATED: ELSA-2011-0346 -- openldap security and bug fix update (moderate)
Description: [2.3.43-12.7] - fix: CVE-2011-1024 ppolicy forwarded bind failure messages cause success (#680484) [2.3.43-12.6] - fix: slapd concurrent access to connections causes slapd to silently die (#677611)
Family: unix Class: patch
Reference(s): ELSA-2011-0346
CVE-2011-1024
Version: 4
Platform(s): Oracle Linux 5
Product(s): openldap
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 18

OpenVAS Exploits

Date Description
2012-07-30 Name : CentOS Update for compat-openldap CESA-2011:0346 centos5 x86_64
File : nvt/gb_CESA-2011_0346_compat-openldap_centos5_x86_64.nasl
2012-06-06 Name : RedHat Update for openldap RHSA-2011:0347-01
File : nvt/gb_RHSA-2011_0347-01_openldap.nasl
2011-09-27 Name : Fedora Update for openldap FEDORA-2011-3627
File : nvt/gb_fedora_2011_3627_openldap_fc14.nasl
2011-08-09 Name : CentOS Update for compat-openldap CESA-2011:0346 centos5 i386
File : nvt/gb_CESA-2011_0346_compat-openldap_centos5_i386.nasl
2011-04-01 Name : Mandriva Update for openldap MDVSA-2011:055 (openldap)
File : nvt/gb_mandriva_MDVSA_2011_055.nasl
2011-04-01 Name : Mandriva Update for openldap MDVSA-2011:056 (openldap)
File : nvt/gb_mandriva_MDVSA_2011_056.nasl
2011-04-01 Name : Ubuntu Update for openldap, openldap2.3 vulnerabilities USN-1100-1
File : nvt/gb_ubuntu_USN_1100_1.nasl
2011-03-15 Name : RedHat Update for openldap RHSA-2011:0346-01
File : nvt/gb_RHSA-2011_0346-01_openldap.nasl
2011-03-05 Name : FreeBSD Ports: openldap-server
File : nvt/freebsd_openldap-server2.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
72528 OpenLDAP back-ldap chain.c Slave Server Invalid Password External-program Aut...

Nessus® Vulnerability Scanner

Date Description
2016-06-22 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0069.nasl - Type : ACT_GATHER_INFO
2014-11-17 Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2011-0439.nasl - Type : ACT_GATHER_INFO
2014-07-01 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201406-36.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_4_openldap2-110304.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_openldap2-110303.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-0346.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-0347.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110310_openldap_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110310_openldap_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2011-09-26 Name : The remote Fedora host is missing a security update.
File : fedora_2011-3627.nasl - Type : ACT_GATHER_INFO
2011-05-05 Name : The remote openSUSE host is missing a security update.
File : suse_11_2_openldap2-110303.nasl - Type : ACT_GATHER_INFO
2011-04-22 Name : The remote Fedora host is missing a security update.
File : fedora_2011-3612.nasl - Type : ACT_GATHER_INFO
2011-04-19 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_compat-libldap-2_3-0-110303.nasl - Type : ACT_GATHER_INFO
2011-04-15 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-0346.nasl - Type : ACT_GATHER_INFO
2011-04-01 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1100-1.nasl - Type : ACT_GATHER_INFO
2011-03-31 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-056.nasl - Type : ACT_GATHER_INFO
2011-03-31 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-055.nasl - Type : ACT_GATHER_INFO
2011-03-11 Name : The remote host is missing the patch for the advisory RHSA-2011-0347
File : redhat-RHSA-2011-0347.nasl - Type : ACT_GATHER_INFO
2011-03-11 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-0346.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:54:28
  • Multiple Updates