[ GLSA 200812-10 ] Archive::Tar: Directory traversal vulnerability

[Robert Buchholz <rbu () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200812-10
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Archive::Tar: Directory traversal vulnerability
      Date: December 10, 2008
      Bugs: #192989
        ID: 200812-10

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Synopsis
========

A directory traversal vulnerability has been discovered in
Archive::Tar.

Background
==========

Archive::Tar is a Perl module for creation and manipulation of tar
files.

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

    -------------------------------------------------------------------
     Package                /  Vulnerable  /                Unaffected
    -------------------------------------------------------------------
  1  perl-core/Archive-Tar       < 1.40                        >= 1.40

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

Jonathan Smith of rPath reported that Archive::Tar does not check for
".." in file names.

Impact
======

A remote attacker could entice a user or automated system to extract a
specially crafted tar archive, overwriting files at arbitrary locations
outside of the specified directory.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Archive::Tar users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=perl-core/Archive-Tar-1.40"

References
==========

  [ 1 ] CVE-2007-4829
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4829

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

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

  http://security.gentoo.org/glsa/glsa-200812-10.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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