[ GLSA 200505-13 ] FreeRADIUS: Buffer overflow and SQL injection vulnerability

[Sune Kloppenborg Jeppesen <jaervosz () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200505-13
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                                            http://security.gentoo.org/
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  Severity: High
     Title: FreeRADIUS: Buffer overflow and SQL injection vulnerability
      Date: May 17, 2005
      Bugs: #91736
        ID: 200505-13

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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

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