RHSA-2012:0899 - Security Advisory

Topic

Updated openldap packages that fix one security issue and several bugs are
now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low
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.

Description

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.

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/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 732916 - SASL_NOCANON option missing in ldap.conf manual page
• BZ - 742023 - Default SSL certificate bundle is not found by openldap library
• BZ - 742163 - Overlay constraint with count option work bad with modify operation
• BZ - 743781 - ldapsearch crashes with invalid prameters
• BZ - 745470 - missing options in manual pages of client tools
• BZ - 783445 - replication (syncrepl) with TLS causes segfault
• BZ - 784203 - Duplicate close() calls in OpenLDAP
• BZ - 790687 - openldap should be using portreserve
• BZ - 796808 - slapd segfaults when certificate key cannot be loaded
• BZ - 802514 - CVE-2012-1164 openldap (slapd): Assertion failure by processing search queries requesting only attributes for particular entry
• BZ - 807363 - openldap libraries leak memory when following referrals
• BZ - 816168 - memory leak: def_urlpre is not freed
• BZ - 818844 - MozNSS CA cert dir does not work together with PEM CA cert file

CVEs

• CVE-2012-1164

References

• https://access.redhat.com/security/updates/classification/#low
• https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/openldap.html#RHSA-2012-0899