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Date: Thu, 14 Dec 2006 14:55:44 +0100
From: Raphael Marichez <falco@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200612-16 ] Links: Arbitrary Samba command
	execution

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Gentoo Linux Security Advisory                           GLSA 200612-16
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Links: Arbitrary Samba command execution
      Date: December 14, 2006
      Bugs: #157028
        ID: 200612-16

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Synopsis
========

Links does not properly validate "smb://" URLs, making it vulnerable to
the execution of arbitrary Samba commands.

Background
==========

Links is a web browser running in both graphics and text modes.

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

    -------------------------------------------------------------------
     Package           /   Vulnerable   /                   Unaffected
    -------------------------------------------------------------------
  1  www-client/links      < 2.1_pre26                    >= 2.1_pre26

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

Teemu Salmela discovered that Links does not properly validate "smb://"
URLs when it runs smbclient commands.

Impact
======

A remote attacker could entice a user to browse to a specially crafted
"smb://" URL and execute arbitrary Samba commands, which would allow
the overwriting of arbitrary local files or the upload or the download
of arbitrary files. This vulnerability can be exploited only if
"smbclient" is installed on the victim's computer, which is provided by
the "samba" Gentoo package.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Links users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/links-2.1_pre26"

References
==========

  [ 1 ] CVE-2006-5925
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5925

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

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

  http://security.gentoo.org/glsa/glsa-200612-16.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 2006 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/2.5

Content of type "application/pgp-signature" skipped

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