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Red Hat 6: RHSA-2012:0899-04 Low Severity: OpenLDAP DoS Issue

red hat
Calendar Grey June 20, 2012
Dist Redhat Esm H88
Uncover the lightweight OpenLDAP security patch for Red Hat Enterprise Linux 6, detailing resolved issues and enhancements.
Updated openldap packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 6

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/articles/11258

Summary

OpenLDAP is an open source suite of LDAP (Lightweight Directory Access Protocol) applications and development tools.
A denial of service flaw was found in the way the OpenLDAP server daemon (slapd) processed certain search queries requesting only attributes and no values. In certain configurations, a remote attacker could issue a specially-crafted LDAP search query that, when processed by slapd, would cause slapd to crash due to an assertion failure. (CVE-2012-1164)
These updated openldap packages include numerous bug fixes. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.3 Technical Notes for information on the most significant of these changes.
Users of OpenLDAP are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the OpenLDAP daemons will be restarted automatically.

Topics%20covered

Topics Covered

security advisory security update Red Hat DoS attack low severity OpenLDAP

References

https://access.redhat.com/security/cve/CVE-2012-1164 https://access.redhat.com/security/updates/classification#low https://access.redhat.com/search/

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: openldap-2.4.23-26.el6.i686.rpm openldap-clients-2.4.23-26.el6.i686.rpm openldap-debuginfo-2.4.23-26.el6.i686.rpm
x86_64: openldap-2.4.23-26.el6.i686.rpm openldap-2.4.23-26.el6.x86_64.rpm openldap-clients-2.4.23-26.el6.x86_64.rpm openldap-debuginfo-2.4.23-26.el6.i686.rpm openldap-debuginfo-2.4.23-26.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: openldap-debuginfo-2.4.23-26.el6.i686.rpm openldap-devel-2.4.23-26.el6.i686.rpm openldap-servers-2.4.23-26.el6.i686.rpm openldap-servers-sql-2.4.23-26.el6.i686.rpm
x86_64: openldap-debuginfo-2.4.23-26.el6.i686.rpm openldap-debuginfo-2.4.23-26.el6.x86_64.rpm openldap-devel-2.4.23-26.el6.i686.rpm openldap-devel-2.4.23-26.el6.x86_64.rpm openldap-servers-2.4.23-26.el6.x86_64.rpm openldap-servers-sql-2.4.23-26.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: openldap-2.4.23-26.el6.i686.rpm openldap-2.4.23-26.el6.x86_64.rpm openldap-clients-2.4.23-26.el6.x86_64.rpm openldap-debuginfo-2.4.23-26.el6.i686.rpm openldap-debuginfo-2.4.23-26.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64: openldap-debuginfo-2.4.23-26.el6.i686.rpm openldap-debuginfo-2.4.23-26.el6.x86_64.rpm

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2012:0899-04
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:0899.html
Issue date: 2012-06-20

Topic

Updated openldap packages that fix one security issue and several bugs arenow available for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having lowsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat DoS attack low severity OpenLDAP

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

732916 - SASL_NOCANON option missing in ldap.conf manual page

742023 - Default SSL certificate bundle is not found by openldap library

742163 - Overlay constraint with count option work bad with modify operation

743781 - ldapsearch crashes with invalid prameters745470 - missing options in manual pages of client tools

783445 - replication (syncrepl) with TLS causes segfault

784203 - Duplicate close() calls in OpenLDAP

790687 - openldap should be using portreserve

796808 - slapd segfaults when certificate key cannot be loaded

802514 - CVE-2012-1164 openldap (slapd): Assertion failure by processing search queries requesting only attributes for particular entry

807363 - openldap libraries leak memory when following referrals

816168 - memory leak: def_urlpre is not freed

818844 - MozNSS CA cert dir does not work together with PEM CA cert file

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