[ GLSA 200405-05 ] Utempter symlink vulnerability
Date: Thu, 13 May 2004 12:12:51 -0400
From: Kurt Lieber <klieber@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Subject: [ GLSA 200405-05 ] Utempter symlink vulnerability
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200405-05
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http://security.gentoo.org/
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Severity: Normal
Title: Utempter symlink vulnerability
Date: May 13, 2004
Bugs: #49536
ID: 200405-05
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Synopsis
========
Utempter contains a vulnerability that may allow local users to
overwrite arbitrary files via a symlink attack.
Background
==========
Utempter is an application that allows non-privileged apps to write
utmp (login) info, which otherwise needs root access.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/utempter < 0.5.5.4 >= 0.5.5.4
Description
===========
Utempter contains a vulnerability that may allow local users to
overwrite arbitrary files via a symlink attack.
Impact
======
This vulnerability may allow arbitrary files to be overwritten with
root privileges.
Workaround
==========
There is no known workaround at this time. All users are advised to
upgrade to the latest available version of utempter.
Resolution
==========
All users of utempter should upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=sys-apps/utempter-0.5.5.4"
# emerge ">=sys-apps/utempter-0.5.5.4"
References
==========
[ 1 ] CAN-2004-0233
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0233
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200405-05.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 Technologies, 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/1.0
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