A new security update has been released for Gentoo Linux - Archive::Tar: Directory traversal vulnerability. Here the announcement:
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
=================
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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
