From: Raphael Marichez (falcogentoo.org)
Date: Fri Mar 09 2007 - 16:53:37 CST

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Gentoo Linux Security Advisory GLSA 200703-09
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Smb4K: Multiple vulnerabilities
      Date: March 09, 2007
      Bugs: #156152
        ID: 200703-09

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Synopsis
========

Multiple vulnerabilities have been identified in Smb4K.

Background
==========

Smb4K is a SMB/CIFS (Windows) share browser for KDE.

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

    -------------------------------------------------------------------
     Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
  1 net-misc/smb4k < 0.6.10a >= 0.6.10a

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

Kees Cook of the Ubuntu Security Team has identified multiple
vulnerabilities in Smb4K.

* The writeFile() function of smb4k/core/smb4kfileio.cpp makes
  insecure usage of temporary files.

* The writeFile() function also stores the contents of the sudoers
  file with incorrect permissions, allowing for the file's contents to
  be world-readable.

* The createLockFile() and removeLockFile() functions improperly
  handle lock files, possibly allowing for a race condition in file
  handling.

* The smb4k_kill utility distributed with Smb4K allows any user in
  the sudoers group to kill any process on the system.

* Lastly, there is the potential for multiple stack overflows when
  any Smb4K utility is used with the sudo command.

Impact
======

A local attacker could gain unauthorized access to arbitrary files via
numerous attack vectors. In some cases to obtain this unauthorized
access, an attacker would have to be a member of the sudoers list.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Smb4K users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/smb4k-0.6.10a"

References
==========

  [ 1 ] CVE-2007-0472
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0472
  [ 2 ] CVE-2007-0473
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0473
  [ 3 ] CVE-2007-0474
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0474
  [ 4 ] CVE-2007-0475
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0475

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

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

  http://security.gentoo.org/glsa/glsa-200703-09.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
securitygentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 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

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