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                   Red Hat Security Advisory

Synopsis:          Low: libuser security update
Advisory ID:       RHSA-2005:770-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-770.html
Issue date:        2005-10-11
Updated on:        2005-10-11
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2004-2392
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1. Summary:

Updated libuser packages that fix various security issues are now available.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386

3. Problem description:

The libuser library implements a standardized interface for manipulating
and administering user and group accounts. The library uses pluggable
back-ends to interface to its data sources. Sample applications that are
modeled after applications from the shadow password suite are included in
the package.

Several denial of service bugs were discovered in libuser. Under certain
conditions it is possible for an application linked against libuser to
crash or operate irregularly. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CAN-2004-2392 to these issues.

All users of libuser are advised to upgrade to these updated packages,
which contain a backported fix and are not vulnerable to 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 Red Hat Network.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

167113 - CAN-2004-2392 libuser serious programming bugs


6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
libuser-0.32-1.el2.1.src.rpm
5e0f990b6bd85505365e57885021f427  libuser-0.32-1.el2.1.src.rpm

i386:
94fa396fe3e070b6a669c28001663b72  libuser-0.32-1.el2.1.i386.rpm
3d30b7d22091eb982939b2db8b28486c  libuser-devel-0.32-1.el2.1.i386.rpm

ia64:
394a1089155f809af30b190bc3ac2cf6  libuser-0.32-1.el2.1.ia64.rpm
4888f35290a8d15ae47ecf63964e32e4  libuser-devel-0.32-1.el2.1.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
libuser-0.32-1.el2.1.src.rpm
5e0f990b6bd85505365e57885021f427  libuser-0.32-1.el2.1.src.rpm

ia64:
394a1089155f809af30b190bc3ac2cf6  libuser-0.32-1.el2.1.ia64.rpm
4888f35290a8d15ae47ecf63964e32e4  libuser-devel-0.32-1.el2.1.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
libuser-0.32-1.el2.1.src.rpm
5e0f990b6bd85505365e57885021f427  libuser-0.32-1.el2.1.src.rpm

i386:
94fa396fe3e070b6a669c28001663b72  libuser-0.32-1.el2.1.i386.rpm
3d30b7d22091eb982939b2db8b28486c  libuser-devel-0.32-1.el2.1.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
libuser-0.32-1.el2.1.src.rpm
5e0f990b6bd85505365e57885021f427  libuser-0.32-1.el2.1.src.rpm

i386:
94fa396fe3e070b6a669c28001663b72  libuser-0.32-1.el2.1.i386.rpm
3d30b7d22091eb982939b2db8b28486c  libuser-devel-0.32-1.el2.1.i386.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=CAN-2004-2392

8. Contact:

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

Copyright 2005 Red Hat, Inc.
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