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,

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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://access.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

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:

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:

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:

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:

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:

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:

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:

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:

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:

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:

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:

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:

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:

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:

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:

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://access.redhat.com/security/cve/CVE-2011-0002
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2011 Red Hat, Inc.
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