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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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