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Category:   Application (Directory)  >   OpenLDAP Vendors:   OpenLDAP.org
(Red Hat Issues Fix) OpenLDAP ber_get_next() Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1020450
SecurityTracker URL:  http://securitytracker.com/id/1020450
CVE Reference:   CVE-2008-2952   (Links to External Site)
Date:  Jul 9 2008
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.3.39 (stable)
Description:   A vulnerability was reported in OpenLDAP. A remote user can cause denial of service conditions.

A remote user can send specially crafted data to trigger a flaw in the decoding of ASN.1 BER network datagrams and cause the target service to crash.

A specially crafted BerElement size value can trigger this flaw.

The vulnerability resides in the ber_get_next() function in 'libraries/liblber/io.c'.

Cameron Hotchkies reported this vulnerability.
Impact:   A remote user can cause the LDAP service to crash.
Solution:   Red Hat has released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0583.html
Vendor URL:  www.openldap.org/its/index.cgi/Software%20Bugs?id=5580 (Links to External Site)
Cause:   Boundary error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Jul 1 2008 OpenLDAP ber_get_next() Bug Lets Remote Users Deny Service


 Source Message Contents
Date:  Wed, 9 Jul 2008 10:54:33 -0400
Subject:  [RHSA-2008:0583-01] Important: openldap security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis:          Important: openldap security update
Advisory ID:       RHSA-2008:0583-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0583.html
Issue date:        2008-07-09
CVE Names:         CVE-2008-2952 
=====================================================================

1. Summary:

Updated openldap packages that fix a security issue are now available for
Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, 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 for
accessing directory services.

A denial of service flaw was found in the way the OpenLDAP slapd daemon
processed certain network messages. An unauthenticated remote attacker
could send a specially crafted request that would crash the slapd daemon.
(CVE-2008-2952)

Users of openldap should upgrade to these updated packages, which contain a
backported patch to correct this issue.

4. Solution:

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

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

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

453444 - CVE-2008-2952 OpenLDAP denial-of-service flaw in ASN.1 decoder

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/openldap-2.2.13-8.el4_6.5.src.rpm

i386:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-clients-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-devel-2.2.13-8.el4_6.5.i386.rpm
openldap-servers-2.2.13-8.el4_6.5.i386.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.i386.rpm

ia64:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
compat-openldap-2.1.30-8.el4_6.5.ia64.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.ia64.rpm
openldap-clients-2.2.13-8.el4_6.5.ia64.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.ia64.rpm
openldap-devel-2.2.13-8.el4_6.5.ia64.rpm
openldap-servers-2.2.13-8.el4_6.5.ia64.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.ia64.rpm

ppc:
compat-openldap-2.1.30-8.el4_6.5.ppc.rpm
compat-openldap-2.1.30-8.el4_6.5.ppc64.rpm
openldap-2.2.13-8.el4_6.5.ppc.rpm
openldap-2.2.13-8.el4_6.5.ppc64.rpm
openldap-clients-2.2.13-8.el4_6.5.ppc.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.ppc.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.ppc64.rpm
openldap-devel-2.2.13-8.el4_6.5.ppc.rpm
openldap-servers-2.2.13-8.el4_6.5.ppc.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.ppc.rpm

s390:
compat-openldap-2.1.30-8.el4_6.5.s390.rpm
openldap-2.2.13-8.el4_6.5.s390.rpm
openldap-clients-2.2.13-8.el4_6.5.s390.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.s390.rpm
openldap-devel-2.2.13-8.el4_6.5.s390.rpm
openldap-servers-2.2.13-8.el4_6.5.s390.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.s390.rpm

s390x:
compat-openldap-2.1.30-8.el4_6.5.s390.rpm
compat-openldap-2.1.30-8.el4_6.5.s390x.rpm
openldap-2.2.13-8.el4_6.5.s390.rpm
openldap-2.2.13-8.el4_6.5.s390x.rpm
openldap-clients-2.2.13-8.el4_6.5.s390x.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.s390.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.s390x.rpm
openldap-devel-2.2.13-8.el4_6.5.s390x.rpm
openldap-servers-2.2.13-8.el4_6.5.s390x.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.s390x.rpm

x86_64:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
compat-openldap-2.1.30-8.el4_6.5.x86_64.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.x86_64.rpm
openldap-clients-2.2.13-8.el4_6.5.x86_64.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.x86_64.rpm
openldap-devel-2.2.13-8.el4_6.5.x86_64.rpm
openldap-servers-2.2.13-8.el4_6.5.x86_64.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/openldap-2.2.13-8.el4_6.5.src.rpm

i386:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-clients-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-devel-2.2.13-8.el4_6.5.i386.rpm
openldap-servers-2.2.13-8.el4_6.5.i386.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.i386.rpm

x86_64:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
compat-openldap-2.1.30-8.el4_6.5.x86_64.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.x86_64.rpm
openldap-clients-2.2.13-8.el4_6.5.x86_64.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.x86_64.rpm
openldap-devel-2.2.13-8.el4_6.5.x86_64.rpm
openldap-servers-2.2.13-8.el4_6.5.x86_64.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/openldap-2.2.13-8.el4_6.5.src.rpm

i386:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-clients-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-devel-2.2.13-8.el4_6.5.i386.rpm
openldap-servers-2.2.13-8.el4_6.5.i386.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.i386.rpm

ia64:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
compat-openldap-2.1.30-8.el4_6.5.ia64.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.ia64.rpm
openldap-clients-2.2.13-8.el4_6.5.ia64.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.ia64.rpm
openldap-devel-2.2.13-8.el4_6.5.ia64.rpm
openldap-servers-2.2.13-8.el4_6.5.ia64.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.ia64.rpm

x86_64:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
compat-openldap-2.1.30-8.el4_6.5.x86_64.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.x86_64.rpm
openldap-clients-2.2.13-8.el4_6.5.x86_64.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.x86_64.rpm
openldap-devel-2.2.13-8.el4_6.5.x86_64.rpm
openldap-servers-2.2.13-8.el4_6.5.x86_64.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/openldap-2.2.13-8.el4_6.5.src.rpm

i386:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-clients-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-devel-2.2.13-8.el4_6.5.i386.rpm
openldap-servers-2.2.13-8.el4_6.5.i386.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.i386.rpm

ia64:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
compat-openldap-2.1.30-8.el4_6.5.ia64.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.ia64.rpm
openldap-clients-2.2.13-8.el4_6.5.ia64.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.ia64.rpm
openldap-devel-2.2.13-8.el4_6.5.ia64.rpm
openldap-servers-2.2.13-8.el4_6.5.ia64.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.ia64.rpm

x86_64:
compat-openldap-2.1.30-8.el4_6.5.i386.rpm
compat-openldap-2.1.30-8.el4_6.5.x86_64.rpm
openldap-2.2.13-8.el4_6.5.i386.rpm
openldap-2.2.13-8.el4_6.5.x86_64.rpm
openldap-clients-2.2.13-8.el4_6.5.x86_64.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.i386.rpm
openldap-debuginfo-2.2.13-8.el4_6.5.x86_64.rpm
openldap-devel-2.2.13-8.el4_6.5.x86_64.rpm
openldap-servers-2.2.13-8.el4_6.5.x86_64.rpm
openldap-servers-sql-2.2.13-8.el4_6.5.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/openldap-2.3.27-8.el5_2.4.src.rpm

i386:
compat-openldap-2.3.27_2.2.29-8.el5_2.4.i386.rpm
openldap-2.3.27-8.el5_2.4.i386.rpm
openldap-clients-2.3.27-8.el5_2.4.i386.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.i386.rpm

x86_64:
compat-openldap-2.3.27_2.2.29-8.el5_2.4.i386.rpm
compat-openldap-2.3.27_2.2.29-8.el5_2.4.x86_64.rpm
openldap-2.3.27-8.el5_2.4.i386.rpm
openldap-2.3.27-8.el5_2.4.x86_64.rpm
openldap-clients-2.3.27-8.el5_2.4.x86_64.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.i386.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/openldap-2.3.27-8.el5_2.4.src.rpm

i386:
openldap-debuginfo-2.3.27-8.el5_2.4.i386.rpm
openldap-devel-2.3.27-8.el5_2.4.i386.rpm
openldap-servers-2.3.27-8.el5_2.4.i386.rpm
openldap-servers-sql-2.3.27-8.el5_2.4.i386.rpm

x86_64:
openldap-debuginfo-2.3.27-8.el5_2.4.i386.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.x86_64.rpm
openldap-devel-2.3.27-8.el5_2.4.i386.rpm
openldap-devel-2.3.27-8.el5_2.4.x86_64.rpm
openldap-servers-2.3.27-8.el5_2.4.x86_64.rpm
openldap-servers-sql-2.3.27-8.el5_2.4.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/openldap-2.3.27-8.el5_2.4.src.rpm

i386:
compat-openldap-2.3.27_2.2.29-8.el5_2.4.i386.rpm
openldap-2.3.27-8.el5_2.4.i386.rpm
openldap-clients-2.3.27-8.el5_2.4.i386.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.i386.rpm
openldap-devel-2.3.27-8.el5_2.4.i386.rpm
openldap-servers-2.3.27-8.el5_2.4.i386.rpm
openldap-servers-sql-2.3.27-8.el5_2.4.i386.rpm

ia64:
compat-openldap-2.3.27_2.2.29-8.el5_2.4.i386.rpm
compat-openldap-2.3.27_2.2.29-8.el5_2.4.ia64.rpm
openldap-2.3.27-8.el5_2.4.i386.rpm
openldap-2.3.27-8.el5_2.4.ia64.rpm
openldap-clients-2.3.27-8.el5_2.4.ia64.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.i386.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.ia64.rpm
openldap-devel-2.3.27-8.el5_2.4.ia64.rpm
openldap-servers-2.3.27-8.el5_2.4.ia64.rpm
openldap-servers-sql-2.3.27-8.el5_2.4.ia64.rpm

ppc:
compat-openldap-2.3.27_2.2.29-8.el5_2.4.ppc.rpm
compat-openldap-2.3.27_2.2.29-8.el5_2.4.ppc64.rpm
openldap-2.3.27-8.el5_2.4.ppc.rpm
openldap-2.3.27-8.el5_2.4.ppc64.rpm
openldap-clients-2.3.27-8.el5_2.4.ppc.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.ppc.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.ppc64.rpm
openldap-devel-2.3.27-8.el5_2.4.ppc.rpm
openldap-devel-2.3.27-8.el5_2.4.ppc64.rpm
openldap-servers-2.3.27-8.el5_2.4.ppc.rpm
openldap-servers-sql-2.3.27-8.el5_2.4.ppc.rpm

s390x:
compat-openldap-2.3.27_2.2.29-8.el5_2.4.s390.rpm
compat-openldap-2.3.27_2.2.29-8.el5_2.4.s390x.rpm
openldap-2.3.27-8.el5_2.4.s390.rpm
openldap-2.3.27-8.el5_2.4.s390x.rpm
openldap-clients-2.3.27-8.el5_2.4.s390x.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.s390.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.s390x.rpm
openldap-devel-2.3.27-8.el5_2.4.s390.rpm
openldap-devel-2.3.27-8.el5_2.4.s390x.rpm
openldap-servers-2.3.27-8.el5_2.4.s390x.rpm
openldap-servers-sql-2.3.27-8.el5_2.4.s390x.rpm

x86_64:
compat-openldap-2.3.27_2.2.29-8.el5_2.4.i386.rpm
compat-openldap-2.3.27_2.2.29-8.el5_2.4.x86_64.rpm
openldap-2.3.27-8.el5_2.4.i386.rpm
openldap-2.3.27-8.el5_2.4.x86_64.rpm
openldap-clients-2.3.27-8.el5_2.4.x86_64.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.i386.rpm
openldap-debuginfo-2.3.27-8.el5_2.4.x86_64.rpm
openldap-devel-2.3.27-8.el5_2.4.i386.rpm
openldap-devel-2.3.27-8.el5_2.4.x86_64.rpm
openldap-servers-2.3.27-8.el5_2.4.x86_64.rpm
openldap-servers-sql-2.3.27-8.el5_2.4.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2952
http://www.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2008 Red Hat, Inc.
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