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ESB-2009.1303 - [RedHat] freeradius: Denial of service - Remote/unauthenticated

Date: 18 September 2009
References: ASB-2009.1080  

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Click here for PGP verifiable version
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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2009.1303
                   Moderate: freeradius security update
                             18 September 2009

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

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

Product:           freeradius
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux WS/Desktop 5
                   Red Hat Enterprise Linux Server 5
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-3111 CVE-2003-0967 

Reference:         ASB-2009.1080

Original Bulletin: 
   https://rhn.redhat.com/errata/RHSA-2009-1451.html

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

Synopsis:          Moderate: freeradius security update
Advisory ID:       RHSA-2009:1451-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2009-1451.html
Issue date:        2009-09-17
CVE Names:         CVE-2009-3111 
=====================================================================

1. Summary:

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

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

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

3. Description:

FreeRADIUS is a high-performance and highly configurable free Remote
Authentication Dial In User Service (RADIUS) server, designed to allow
centralized authentication and authorization for a network.

An input validation flaw was discovered in the way FreeRADIUS decoded
specific RADIUS attributes from RADIUS packets. A remote attacker could use
this flaw to crash the RADIUS daemon (radiusd) via a specially-crafted
RADIUS packet. (CVE-2009-3111)

Users of FreeRADIUS are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
update, radiusd will be restarted automatically.

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/docs/DOC-11259

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

521912 - CVE-2009-3111 FreeRADIUS: Missing check for Tunnel-Password attributes with zero length (DoS) -- re-appearance of CVE-2003-0967

6. Package List:

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/freeradius-1.1.3-1.5.el5_4.src.rpm

i386:
freeradius-1.1.3-1.5.el5_4.i386.rpm
freeradius-debuginfo-1.1.3-1.5.el5_4.i386.rpm
freeradius-mysql-1.1.3-1.5.el5_4.i386.rpm
freeradius-postgresql-1.1.3-1.5.el5_4.i386.rpm
freeradius-unixODBC-1.1.3-1.5.el5_4.i386.rpm

x86_64:
freeradius-1.1.3-1.5.el5_4.x86_64.rpm
freeradius-debuginfo-1.1.3-1.5.el5_4.x86_64.rpm
freeradius-mysql-1.1.3-1.5.el5_4.x86_64.rpm
freeradius-postgresql-1.1.3-1.5.el5_4.x86_64.rpm
freeradius-unixODBC-1.1.3-1.5.el5_4.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/freeradius-1.1.3-1.5.el5_4.src.rpm

i386:
freeradius-1.1.3-1.5.el5_4.i386.rpm
freeradius-debuginfo-1.1.3-1.5.el5_4.i386.rpm
freeradius-mysql-1.1.3-1.5.el5_4.i386.rpm
freeradius-postgresql-1.1.3-1.5.el5_4.i386.rpm
freeradius-unixODBC-1.1.3-1.5.el5_4.i386.rpm

ia64:
freeradius-1.1.3-1.5.el5_4.ia64.rpm
freeradius-debuginfo-1.1.3-1.5.el5_4.ia64.rpm
freeradius-mysql-1.1.3-1.5.el5_4.ia64.rpm
freeradius-postgresql-1.1.3-1.5.el5_4.ia64.rpm
freeradius-unixODBC-1.1.3-1.5.el5_4.ia64.rpm

ppc:
freeradius-1.1.3-1.5.el5_4.ppc.rpm
freeradius-debuginfo-1.1.3-1.5.el5_4.ppc.rpm
freeradius-mysql-1.1.3-1.5.el5_4.ppc.rpm
freeradius-postgresql-1.1.3-1.5.el5_4.ppc.rpm
freeradius-unixODBC-1.1.3-1.5.el5_4.ppc.rpm

s390x:
freeradius-1.1.3-1.5.el5_4.s390x.rpm
freeradius-debuginfo-1.1.3-1.5.el5_4.s390x.rpm
freeradius-mysql-1.1.3-1.5.el5_4.s390x.rpm
freeradius-postgresql-1.1.3-1.5.el5_4.s390x.rpm
freeradius-unixODBC-1.1.3-1.5.el5_4.s390x.rpm

x86_64:
freeradius-1.1.3-1.5.el5_4.x86_64.rpm
freeradius-debuginfo-1.1.3-1.5.el5_4.x86_64.rpm
freeradius-mysql-1.1.3-1.5.el5_4.x86_64.rpm
freeradius-postgresql-1.1.3-1.5.el5_4.x86_64.rpm
freeradius-unixODBC-1.1.3-1.5.el5_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-2009-3111
http://www.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 2009 Red Hat, Inc.
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===========================================================================
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