GLSA 200803-11 Vobcopy: Insecure temporary file creation
Posted on: 03/05/2008 11:30 PM

A new security update has been released for Gentoo Linux - Vobcopy: Insecure temporary file creation. Here the announcement:

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
=================

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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-video/vobcopy lt; 1.1.0 gt;= 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 "gt;=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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