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

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Message-ID: <1099405272.6847.3.camel@tomservo.rh.rit.edu>
From: lewk at gentoo.org (Luke Macken)
Subject: [ GLSA 200411-04 ] Speedtouch USB driver: Privilege escalation
 vulnerability

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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@...too.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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