=====================================================================
                                  CERT-Renater

                       Note d'Information No. 2005/VULN306
_____________________________________________________________________

DATE                      : 18/05/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running FreeRADIUS.

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

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200505-13
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                             http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

   Severity: High
      Title: FreeRADIUS: Buffer overflow and SQL injection vulnerability
       Date: May 17, 2005
       Bugs: #91736
         ID: 200505-13

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

The FreeRADIUS server is vulnerable to a buffer overflow and an SQL
injection attack, possibly allowing the compromise of the system.

Background
==========

FreeRADIUS is an open source RADIUS authentication server
implementation.

Affected packages
=================

     -------------------------------------------------------------------
      Package                /  Vulnerable  /                Unaffected
     -------------------------------------------------------------------
   1  net-dialup/freeradius     < 1.0.2-r3                  >= 1.0.2-r3

Description
===========

Primoz Bratanic discovered that the sql_escape_func function of
FreeRADIUS may be vulnerable to a buffer overflow (BID 13541). He also
discovered that FreeRADIUS fails to sanitize user-input before using it
in a SQL query, possibly allowing SQL command injection (BID 13540).

Impact
======

By supplying carefully crafted input, a malicious user could cause a
buffer overflow or an SQL injection, possibly leading to the execution
of arbitrary code or disclosure and the modification of sensitive data.

Workaround
==========

There are no known workarounds at this time.

Resolution
==========

All FreeRADIUS users should upgrade to the latest available version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=net-dialup/freeradius-1.0.2-r3"

References
==========

   [ 1 ] BugTraq ID 13540
         http://www.securityfocus.com/bid/13540/
   [ 2 ] BugTraq ID 13541
         http://www.securityfocus.com/bid/13541/

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

   http://security.gentoo.org/glsa/glsa-200505-13.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0

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

         =========================================================
         Les serveurs de référence du CERT-Renater
         http://www.urec.fr/securite
         http://www.cru.fr/securite
         http://www.renater.fr
         =========================================================
         + CERT-RENATER          | tel : 01-53-94-20-44          +
         + 151 bd de l'Hopital   | fax : 01-53-94-20-41          +
         + 75013 Paris           | email: certsvp@renater.fr     +
         =========================================================