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Gentoo Linux Security Advisory                           GLSA 200812-10
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                                            https://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:

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

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
https://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.

https://creativecommons.org/licenses/by-sa/2.5/