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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.0069
                     Moderate: libuser security update
                              21 January 2011

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libuser
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux AS/ES/WS 4
                   Red Hat Enterprise Linux Desktop 4
                   Red Hat Enterprise Linux Server 5
                   Red Hat Enterprise Linux WS/Desktop 5
                   Red Hat Enterprise Linux Server 6
                   Red Hat Enterprise Linux WS/Desktop 6
                   Linux variants
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2011-0002  

Original Bulletin: 
   https://rhn.redhat.com/errata/RHSA-2011-0170.html

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Red Hat. It is recommended that administrators
         running libuser check for an updated version of the software for 
         their operating system.

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

Synopsis:          Moderate: libuser security update
Advisory ID:       RHSA-2011:0170-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-0170.html
Issue date:        2011-01-20
CVE Names:         CVE-2011-0002 
=====================================================================

1. Summary:

Updated libuser packages that fix one security issue are now available for
Red Hat Enterprise Linux 4, 5, and 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:

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

The libuser library implements a standardized interface for manipulating
and administering user and group accounts. Sample applications that are
modeled after applications from the shadow password suite (shadow-utils)
are included in these packages.

It was discovered that libuser did not set the password entry correctly
when creating LDAP (Lightweight Directory Access Protocol) users. If an
administrator did not assign a password to an LDAP based user account,
either at account creation with luseradd, or with lpasswd after account
creation, an attacker could use this flaw to log into that account with a
default password string that should have been rejected. (CVE-2011-0002)

Note: LDAP administrators that have used libuser tools to add users should
check existing user accounts for plain text passwords, and reset them as
necessary.

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

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
http://kbase.redhat.com/faq/docs/DOC-11259

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

643227 - CVE-2011-0002 libuser creates LDAP users with a default password

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/libuser-0.52.5-1.1.el4_8.1.src.rpm

i386:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-devel-0.52.5-1.1.el4_8.1.i386.rpm

ia64:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-0.52.5-1.1.el4_8.1.ia64.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.ia64.rpm
libuser-devel-0.52.5-1.1.el4_8.1.ia64.rpm

ppc:
libuser-0.52.5-1.1.el4_8.1.ppc.rpm
libuser-0.52.5-1.1.el4_8.1.ppc64.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.ppc.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.ppc64.rpm
libuser-devel-0.52.5-1.1.el4_8.1.ppc.rpm

s390:
libuser-0.52.5-1.1.el4_8.1.s390.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.s390.rpm
libuser-devel-0.52.5-1.1.el4_8.1.s390.rpm

s390x:
libuser-0.52.5-1.1.el4_8.1.s390.rpm
libuser-0.52.5-1.1.el4_8.1.s390x.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.s390.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.s390x.rpm
libuser-devel-0.52.5-1.1.el4_8.1.s390x.rpm

x86_64:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-0.52.5-1.1.el4_8.1.x86_64.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.x86_64.rpm
libuser-devel-0.52.5-1.1.el4_8.1.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/libuser-0.52.5-1.1.el4_8.1.src.rpm

i386:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-devel-0.52.5-1.1.el4_8.1.i386.rpm

x86_64:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-0.52.5-1.1.el4_8.1.x86_64.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.x86_64.rpm
libuser-devel-0.52.5-1.1.el4_8.1.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/libuser-0.52.5-1.1.el4_8.1.src.rpm

i386:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-devel-0.52.5-1.1.el4_8.1.i386.rpm

ia64:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-0.52.5-1.1.el4_8.1.ia64.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.ia64.rpm
libuser-devel-0.52.5-1.1.el4_8.1.ia64.rpm

x86_64:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-0.52.5-1.1.el4_8.1.x86_64.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.x86_64.rpm
libuser-devel-0.52.5-1.1.el4_8.1.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/libuser-0.52.5-1.1.el4_8.1.src.rpm

i386:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-devel-0.52.5-1.1.el4_8.1.i386.rpm

ia64:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-0.52.5-1.1.el4_8.1.ia64.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.ia64.rpm
libuser-devel-0.52.5-1.1.el4_8.1.ia64.rpm

x86_64:
libuser-0.52.5-1.1.el4_8.1.i386.rpm
libuser-0.52.5-1.1.el4_8.1.x86_64.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.i386.rpm
libuser-debuginfo-0.52.5-1.1.el4_8.1.x86_64.rpm
libuser-devel-0.52.5-1.1.el4_8.1.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libuser-0.54.7-2.1.el5_5.2.src.rpm

i386:
libuser-0.54.7-2.1.el5_5.2.i386.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.i386.rpm

x86_64:
libuser-0.54.7-2.1.el5_5.2.i386.rpm
libuser-0.54.7-2.1.el5_5.2.x86_64.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.i386.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libuser-0.54.7-2.1.el5_5.2.src.rpm

i386:
libuser-debuginfo-0.54.7-2.1.el5_5.2.i386.rpm
libuser-devel-0.54.7-2.1.el5_5.2.i386.rpm

x86_64:
libuser-debuginfo-0.54.7-2.1.el5_5.2.i386.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.x86_64.rpm
libuser-devel-0.54.7-2.1.el5_5.2.i386.rpm
libuser-devel-0.54.7-2.1.el5_5.2.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/libuser-0.54.7-2.1.el5_5.2.src.rpm

i386:
libuser-0.54.7-2.1.el5_5.2.i386.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.i386.rpm
libuser-devel-0.54.7-2.1.el5_5.2.i386.rpm

ia64:
libuser-0.54.7-2.1.el5_5.2.ia64.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.ia64.rpm
libuser-devel-0.54.7-2.1.el5_5.2.ia64.rpm

ppc:
libuser-0.54.7-2.1.el5_5.2.ppc.rpm
libuser-0.54.7-2.1.el5_5.2.ppc64.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.ppc.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.ppc64.rpm
libuser-devel-0.54.7-2.1.el5_5.2.ppc.rpm
libuser-devel-0.54.7-2.1.el5_5.2.ppc64.rpm

s390x:
libuser-0.54.7-2.1.el5_5.2.s390.rpm
libuser-0.54.7-2.1.el5_5.2.s390x.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.s390.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.s390x.rpm
libuser-devel-0.54.7-2.1.el5_5.2.s390.rpm
libuser-devel-0.54.7-2.1.el5_5.2.s390x.rpm

x86_64:
libuser-0.54.7-2.1.el5_5.2.i386.rpm
libuser-0.54.7-2.1.el5_5.2.x86_64.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.i386.rpm
libuser-debuginfo-0.54.7-2.1.el5_5.2.x86_64.rpm
libuser-devel-0.54.7-2.1.el5_5.2.i386.rpm
libuser-devel-0.54.7-2.1.el5_5.2.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libuser-0.56.13-4.el6_0.1.src.rpm

i386:
libuser-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-python-0.56.13-4.el6_0.1.i686.rpm

x86_64:
libuser-0.56.13-4.el6_0.1.i686.rpm
libuser-0.56.13-4.el6_0.1.x86_64.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.x86_64.rpm
libuser-python-0.56.13-4.el6_0.1.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libuser-0.56.13-4.el6_0.1.src.rpm

i386:
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-devel-0.56.13-4.el6_0.1.i686.rpm

x86_64:
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.x86_64.rpm
libuser-devel-0.56.13-4.el6_0.1.i686.rpm
libuser-devel-0.56.13-4.el6_0.1.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libuser-0.56.13-4.el6_0.1.src.rpm

x86_64:
libuser-0.56.13-4.el6_0.1.x86_64.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.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/libuser-0.56.13-4.el6_0.1.src.rpm

x86_64:
libuser-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.x86_64.rpm
libuser-devel-0.56.13-4.el6_0.1.i686.rpm
libuser-devel-0.56.13-4.el6_0.1.x86_64.rpm
libuser-python-0.56.13-4.el6_0.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libuser-0.56.13-4.el6_0.1.src.rpm

i386:
libuser-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-python-0.56.13-4.el6_0.1.i686.rpm

ppc64:
libuser-0.56.13-4.el6_0.1.ppc.rpm
libuser-0.56.13-4.el6_0.1.ppc64.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.ppc.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.ppc64.rpm
libuser-python-0.56.13-4.el6_0.1.ppc64.rpm

s390x:
libuser-0.56.13-4.el6_0.1.s390.rpm
libuser-0.56.13-4.el6_0.1.s390x.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.s390.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.s390x.rpm
libuser-python-0.56.13-4.el6_0.1.s390x.rpm

x86_64:
libuser-0.56.13-4.el6_0.1.i686.rpm
libuser-0.56.13-4.el6_0.1.x86_64.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.x86_64.rpm
libuser-python-0.56.13-4.el6_0.1.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libuser-0.56.13-4.el6_0.1.src.rpm

i386:
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-devel-0.56.13-4.el6_0.1.i686.rpm

ppc64:
libuser-debuginfo-0.56.13-4.el6_0.1.ppc.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.ppc64.rpm
libuser-devel-0.56.13-4.el6_0.1.ppc.rpm
libuser-devel-0.56.13-4.el6_0.1.ppc64.rpm

s390x:
libuser-debuginfo-0.56.13-4.el6_0.1.s390.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.s390x.rpm
libuser-devel-0.56.13-4.el6_0.1.s390.rpm
libuser-devel-0.56.13-4.el6_0.1.s390x.rpm

x86_64:
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.x86_64.rpm
libuser-devel-0.56.13-4.el6_0.1.i686.rpm
libuser-devel-0.56.13-4.el6_0.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libuser-0.56.13-4.el6_0.1.src.rpm

i386:
libuser-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-python-0.56.13-4.el6_0.1.i686.rpm

x86_64:
libuser-0.56.13-4.el6_0.1.i686.rpm
libuser-0.56.13-4.el6_0.1.x86_64.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.x86_64.rpm
libuser-python-0.56.13-4.el6_0.1.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libuser-0.56.13-4.el6_0.1.src.rpm

i386:
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-devel-0.56.13-4.el6_0.1.i686.rpm

x86_64:
libuser-debuginfo-0.56.13-4.el6_0.1.i686.rpm
libuser-debuginfo-0.56.13-4.el6_0.1.x86_64.rpm
libuser-devel-0.56.13-4.el6_0.1.i686.rpm
libuser-devel-0.56.13-4.el6_0.1.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-2011-0002.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://www.redhat.com/security/team/contact/

Copyright 2011 Red Hat, Inc.
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