[ GLSA 200411-04 ] Speedtouch USB driver: Privilege escalation vulnerability

[Luke Macken <lewk () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200411-04
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Speedtouch USB driver: Privilege escalation vulnerability
      Date: November 02, 2004
      Bugs: #68436
        ID: 200411-04

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Synopsis
========

A vulnerability in the Speedtouch USB driver can be exploited to allow
local users to execute arbitrary code with escalated privileges.

Background
==========

The speedtouch package contains a driver for the ADSL SpeedTouch USB
modem.

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

    -------------------------------------------------------------------
     Package                /  Vulnerable  /                Unaffected
    -------------------------------------------------------------------
  1  net-dialup/speedtouch       < 1.3.1                      >= 1.3.1

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

The Speedtouch USB driver contains multiple format string
vulnerabilities in modem_run, pppoa2 and pppoa3. This flaw is due to an
improperly made syslog() system call.

Impact
======

A malicious local user could exploit this vulnerability by causing a
buffer overflow, and potentially allowing the execution of arbitrary
code with escalated privileges.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Speedtouch USB driver users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-dialup/speedtouch-1.3.1"

References
==========

  [ 1 ] CAN-2004-0834
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0834
  [ 2 ] Speedtouch Project News Announcements
        http://speedtouch.sourceforge.net/index.php?/news.en.html

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

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

  http://security.gentoo.org/glsa/glsa-200411-04.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 2004 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/1.0

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