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Red Hat Security Advisory 2012-1151-01

Red Hat Security Advisory 2012-1151-01
Posted Aug 8, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1151-01 - OpenLDAP is an open source suite of LDAP applications and development tools. It was found that the OpenLDAP server daemon ignored olcTLSCipherSuite settings. This resulted in the default cipher suite always being used, which could lead to weaker than expected ciphers being accepted during Transport Layer Security negotiation with OpenLDAP clients.

tags | advisory
systems | linux, redhat
advisories | CVE-2012-2668
MD5 | 5dbfb3d1c36d35bcadf0a4dde97a96d0

Red Hat Security Advisory 2012-1151-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Low: openldap security and bug fix update
Advisory ID: RHSA-2012:1151-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1151.html
Issue date: 2012-08-08
CVE Names: CVE-2012-2668
=====================================================================

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 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.

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 LDAP (Lightweight Directory Access
Protocol) applications and development tools.

It was found that the OpenLDAP server daemon ignored olcTLSCipherSuite
settings. This resulted in the default cipher suite always being used,
which could lead to weaker than expected ciphers being accepted during
Transport Layer Security (TLS) negotiation with OpenLDAP clients.
(CVE-2012-2668)

This update also fixes the following bug:

* When the smbk5pwd overlay was enabled in an OpenLDAP server, and a user
changed their password, the Microsoft NT LAN Manager (NTLM) and Microsoft
LAN Manager (LM) hashes were not computed correctly. This led to the
sambaLMPassword and sambaNTPassword attributes being updated with incorrect
values, preventing the user logging in using a Windows-based client or a
Samba client.

With this update, the smbk5pwd overlay is linked against OpenSSL. As such,
the NTLM and LM hashes are computed correctly, and password changes work as
expected when using smbk5pwd. (BZ#844428)

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.

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/knowledge/articles/11258

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

825875 - CVE-2012-2668 openldap: does not honor TLSCipherSuite settings
844428 - smbk5pwd module computes invalid NT and LM hashes

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openldap-2.4.23-26.el6_3.2.src.rpm

i386:
openldap-2.4.23-26.el6_3.2.i686.rpm
openldap-clients-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm

x86_64:
openldap-2.4.23-26.el6_3.2.i686.rpm
openldap-2.4.23-26.el6_3.2.x86_64.rpm
openldap-clients-2.4.23-26.el6_3.2.x86_64.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.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-2.4.23-26.el6_3.2.src.rpm

i386:
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-devel-2.4.23-26.el6_3.2.i686.rpm
openldap-servers-2.4.23-26.el6_3.2.i686.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.i686.rpm

x86_64:
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.x86_64.rpm
openldap-devel-2.4.23-26.el6_3.2.i686.rpm
openldap-devel-2.4.23-26.el6_3.2.x86_64.rpm
openldap-servers-2.4.23-26.el6_3.2.x86_64.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.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-2.4.23-26.el6_3.2.src.rpm

x86_64:
openldap-2.4.23-26.el6_3.2.i686.rpm
openldap-2.4.23-26.el6_3.2.x86_64.rpm
openldap-clients-2.4.23-26.el6_3.2.x86_64.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.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-2.4.23-26.el6_3.2.src.rpm

x86_64:
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.x86_64.rpm
openldap-devel-2.4.23-26.el6_3.2.i686.rpm
openldap-devel-2.4.23-26.el6_3.2.x86_64.rpm
openldap-servers-2.4.23-26.el6_3.2.x86_64.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openldap-2.4.23-26.el6_3.2.src.rpm

i386:
openldap-2.4.23-26.el6_3.2.i686.rpm
openldap-clients-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-devel-2.4.23-26.el6_3.2.i686.rpm
openldap-servers-2.4.23-26.el6_3.2.i686.rpm

ppc64:
openldap-2.4.23-26.el6_3.2.ppc.rpm
openldap-2.4.23-26.el6_3.2.ppc64.rpm
openldap-clients-2.4.23-26.el6_3.2.ppc64.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.ppc.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.ppc64.rpm
openldap-devel-2.4.23-26.el6_3.2.ppc.rpm
openldap-devel-2.4.23-26.el6_3.2.ppc64.rpm
openldap-servers-2.4.23-26.el6_3.2.ppc64.rpm

s390x:
openldap-2.4.23-26.el6_3.2.s390.rpm
openldap-2.4.23-26.el6_3.2.s390x.rpm
openldap-clients-2.4.23-26.el6_3.2.s390x.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.s390.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.s390x.rpm
openldap-devel-2.4.23-26.el6_3.2.s390.rpm
openldap-devel-2.4.23-26.el6_3.2.s390x.rpm
openldap-servers-2.4.23-26.el6_3.2.s390x.rpm

x86_64:
openldap-2.4.23-26.el6_3.2.i686.rpm
openldap-2.4.23-26.el6_3.2.x86_64.rpm
openldap-clients-2.4.23-26.el6_3.2.x86_64.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.x86_64.rpm
openldap-devel-2.4.23-26.el6_3.2.i686.rpm
openldap-devel-2.4.23-26.el6_3.2.x86_64.rpm
openldap-servers-2.4.23-26.el6_3.2.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-2.4.23-26.el6_3.2.src.rpm

i386:
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.i686.rpm

ppc64:
openldap-debuginfo-2.4.23-26.el6_3.2.ppc64.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.ppc64.rpm

s390x:
openldap-debuginfo-2.4.23-26.el6_3.2.s390x.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.s390x.rpm

x86_64:
openldap-debuginfo-2.4.23-26.el6_3.2.x86_64.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openldap-2.4.23-26.el6_3.2.src.rpm

i386:
openldap-2.4.23-26.el6_3.2.i686.rpm
openldap-clients-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-devel-2.4.23-26.el6_3.2.i686.rpm
openldap-servers-2.4.23-26.el6_3.2.i686.rpm

x86_64:
openldap-2.4.23-26.el6_3.2.i686.rpm
openldap-2.4.23-26.el6_3.2.x86_64.rpm
openldap-clients-2.4.23-26.el6_3.2.x86_64.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-debuginfo-2.4.23-26.el6_3.2.x86_64.rpm
openldap-devel-2.4.23-26.el6_3.2.i686.rpm
openldap-devel-2.4.23-26.el6_3.2.x86_64.rpm
openldap-servers-2.4.23-26.el6_3.2.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-2.4.23-26.el6_3.2.src.rpm

i386:
openldap-debuginfo-2.4.23-26.el6_3.2.i686.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.i686.rpm

x86_64:
openldap-debuginfo-2.4.23-26.el6_3.2.x86_64.rpm
openldap-servers-sql-2.4.23-26.el6_3.2.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-2012-2668.html
https://access.redhat.com/security/updates/classification/#low

8. Contact:

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

Copyright 2012 Red Hat, Inc.
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