[ GLSA 200803-11 ] Vobcopy: Insecure temporary file creation

[Pierre-Yves Rofes <py () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200803-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Vobcopy: Insecure temporary file creation
      Date: March 05, 2008
      Bugs: #197578
        ID: 200803-11

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Synopsis
========

Vobcopy uses temporary files in an insecure manner, allowing for a
symlink attack.

Background
==========

Vobcopy is a tool for decrypting and copying DVD .vob files to a hard
disk.

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

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  media-video/vobcopy       < 1.1.0                        >= 1.1.0

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

Joey Hess reported that vobcopy appends data to the file
"/tmp/vobcopy.bla" in an insecure manner.

Impact
======

A local attacker could exploit this vulnerability to conduct symlink
attacks and append data to arbitrary files with the privileges of the
user running Vobcopy.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Vobcopy users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-video/vobcopy-1.1.0"

References
==========

  [ 1 ] CVE-2007-5718
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5718

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

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

  http://security.gentoo.org/glsa/glsa-200803-11.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 2008 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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