Date: Tue, 9 Nov 2004 20:46:11 +0100
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200411-16 ] zip: Path name buffer overflow
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200411-16
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http://security.gentoo.org/
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Severity: Normal
Title: zip: Path name buffer overflow
Date: November 09, 2004
Bugs: #70227
ID: 200411-16
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Synopsis
========
zip contains a buffer overflow when creating a ZIP archive of files
with very long path names. This could lead to the execution of
arbitrary code.
Background
==========
zip is a compression and file packaging utility.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-arch/zip <= 2.3-r3 >= 2.3-r4
Description
===========
zip does not check the resulting path length when doing recursive
folder compression.
Impact
======
An attacker could exploit this by enticing another user or web
application to create an archive including a specially-crafted path
name, potentially resulting in the execution of arbitrary code with the
permissions of the user running zip.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All zip users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/zip-2.3-r4"
References
==========
[ 1 ] HexView zip Advisory
http://www.hexview.com/docs/20041103-1.txt
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200411-16.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 2004 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/2.0
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