Home / mailings [gentoo-announce] [ GLSA 200710-23 ] Star: Directory traversal vulnerability
Posted on 23 October 2007
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Gentoo Linux Security Advisory GLSA 200710-23
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http://security.gentoo.org/
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Severity: Low
Title: Star: Directory traversal vulnerability
Date: October 22, 2007
Bugs: #189690
ID: 200710-23
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Synopsis
========
A directory traversal vulnerability has been discovered in Star.
Background
==========
The Star program provides the ability to create and extract tar
archives.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-arch/star < 1.5_alpha84 >= 1.5_alpha84
Description
===========
Robert Buchholz of the Gentoo Security team discovered a directory
traversal vulnerability in the has_dotdot() function which does not
identify //.. (slash slash dot dot) sequences in file names inside tar
files.
Impact
======
By enticing a user to extract a specially crafted tar archive, a remote
attacker could extract files to arbitrary locations outside of the
specified directory with the permissions of the user running Star.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Star users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/star-1.5_alpha84"
References
==========
[ 1 ] CVE-2007-4134
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4134
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200710-23.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 2007 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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