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Red Hat Security Advisory

Synopsis: Moderate: openldap security and bug fix update
Advisory ID: RHSA-2014:0126-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0126.html
Issue date: 2014-02-03
CVE Names: CVE-2013-4449
=====================================================================

1. Summary:

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

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:

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

3. Description:

OpenLDAP is an open source suite of Lightweight Directory Access Protocol
(LDAP) applications and development tools. LDAP is a set of protocols used
to access and maintain distributed directory information services over an
IP network. The openldap package contains configuration files, libraries,
and documentation for OpenLDAP.

A denial of service flaw was found in the way the OpenLDAP server daemon
(slapd) performed reference counting when using the rwm (rewrite/remap)
overlay. A remote attacker able to query the OpenLDAP server could use this
flaw to crash the server by immediately unbinding from the server after
sending a search request. (CVE-2013-4449)

Red Hat would like to thank Michael Vishchers from Seven Principles AG for
reporting this issue.

This update also fixes the following bug:

* Previously, OpenLDAP did not properly handle a number of simultaneous
updates. As a consequence, sending a number of parallel update requests to
the server could cause a deadlock. With this update, a superfluous locking
mechanism causing the deadlock has been removed, thus fixing the bug.
(BZ#1056124)

All openldap users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues.

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/site/articles/11258

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

1019490 – CVE-2013-4449 openldap: segfault on certain queries with rwm overlay

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openldap-2.4.23-34.el6_5.1.src.rpm

i386:
openldap-2.4.23-34.el6_5.1.i686.rpm
openldap-clients-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm

x86_64:
openldap-2.4.23-34.el6_5.1.i686.rpm
openldap-2.4.23-34.el6_5.1.x86_64.rpm
openldap-clients-2.4.23-34.el6_5.1.x86_64.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openldap-2.4.23-34.el6_5.1.src.rpm

i386:
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-devel-2.4.23-34.el6_5.1.i686.rpm
openldap-servers-2.4.23-34.el6_5.1.i686.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.i686.rpm

x86_64:
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.x86_64.rpm
openldap-devel-2.4.23-34.el6_5.1.i686.rpm
openldap-devel-2.4.23-34.el6_5.1.x86_64.rpm
openldap-servers-2.4.23-34.el6_5.1.x86_64.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/openldap-2.4.23-34.el6_5.1.src.rpm

x86_64:
openldap-2.4.23-34.el6_5.1.i686.rpm
openldap-2.4.23-34.el6_5.1.x86_64.rpm
openldap-clients-2.4.23-34.el6_5.1.x86_64.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/openldap-2.4.23-34.el6_5.1.src.rpm

x86_64:
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.x86_64.rpm
openldap-devel-2.4.23-34.el6_5.1.i686.rpm
openldap-devel-2.4.23-34.el6_5.1.x86_64.rpm
openldap-servers-2.4.23-34.el6_5.1.x86_64.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openldap-2.4.23-34.el6_5.1.src.rpm

i386:
openldap-2.4.23-34.el6_5.1.i686.rpm
openldap-clients-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-devel-2.4.23-34.el6_5.1.i686.rpm
openldap-servers-2.4.23-34.el6_5.1.i686.rpm

ppc64:
openldap-2.4.23-34.el6_5.1.ppc.rpm
openldap-2.4.23-34.el6_5.1.ppc64.rpm
openldap-clients-2.4.23-34.el6_5.1.ppc64.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.ppc.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.ppc64.rpm
openldap-devel-2.4.23-34.el6_5.1.ppc.rpm
openldap-devel-2.4.23-34.el6_5.1.ppc64.rpm
openldap-servers-2.4.23-34.el6_5.1.ppc64.rpm

s390x:
openldap-2.4.23-34.el6_5.1.s390.rpm
openldap-2.4.23-34.el6_5.1.s390x.rpm
openldap-clients-2.4.23-34.el6_5.1.s390x.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.s390.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.s390x.rpm
openldap-devel-2.4.23-34.el6_5.1.s390.rpm
openldap-devel-2.4.23-34.el6_5.1.s390x.rpm
openldap-servers-2.4.23-34.el6_5.1.s390x.rpm

x86_64:
openldap-2.4.23-34.el6_5.1.i686.rpm
openldap-2.4.23-34.el6_5.1.x86_64.rpm
openldap-clients-2.4.23-34.el6_5.1.x86_64.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.x86_64.rpm
openldap-devel-2.4.23-34.el6_5.1.i686.rpm
openldap-devel-2.4.23-34.el6_5.1.x86_64.rpm
openldap-servers-2.4.23-34.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openldap-2.4.23-34.el6_5.1.src.rpm

i386:
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.i686.rpm

ppc64:
openldap-debuginfo-2.4.23-34.el6_5.1.ppc64.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.ppc64.rpm

s390x:
openldap-debuginfo-2.4.23-34.el6_5.1.s390x.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.s390x.rpm

x86_64:
openldap-debuginfo-2.4.23-34.el6_5.1.x86_64.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openldap-2.4.23-34.el6_5.1.src.rpm

i386:
openldap-2.4.23-34.el6_5.1.i686.rpm
openldap-clients-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-devel-2.4.23-34.el6_5.1.i686.rpm
openldap-servers-2.4.23-34.el6_5.1.i686.rpm

x86_64:
openldap-2.4.23-34.el6_5.1.i686.rpm
openldap-2.4.23-34.el6_5.1.x86_64.rpm
openldap-clients-2.4.23-34.el6_5.1.x86_64.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-debuginfo-2.4.23-34.el6_5.1.x86_64.rpm
openldap-devel-2.4.23-34.el6_5.1.i686.rpm
openldap-devel-2.4.23-34.el6_5.1.x86_64.rpm
openldap-servers-2.4.23-34.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openldap-2.4.23-34.el6_5.1.src.rpm

i386:
openldap-debuginfo-2.4.23-34.el6_5.1.i686.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.i686.rpm

x86_64:
openldap-debuginfo-2.4.23-34.el6_5.1.x86_64.rpm
openldap-servers-sql-2.4.23-34.el6_5.1.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2013-4449.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2014 Red Hat, Inc.
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