Date: Wed, 15 Dec 2004 10:21:34 +0100
From: Thierry Carrez <koon@gentoo.org.>
To: gentoo-announce@lists.gentoo.org
Subject: [ GLSA 200412-09 ] ncpfs: Buffer overflow in ncplogin and ncpmap
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200412-09
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http://security.gentoo.org/
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Severity: High
Title: ncpfs: Buffer overflow in ncplogin and ncpmap
Date: December 15, 2004
Bugs: #72820
ID: 200412-09
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Synopsis
========
ncpfs is vulnerable to a buffer overflow that could lead to local
execution of arbitrary code with elevated privileges.
Background
==========
ncpfs is a NCP protocol network filesystem that allows access to
Netware services, for example to mount volumes of NetWare servers or
print to NetWare print queues.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-fs/ncpfs < 2.2.5 >= 2.2.5
Description
===========
Karol Wiesek discovered a buffer overflow in the handling of the '-T'
option in the ncplogin and ncpmap utilities, which are both installed
as SUID root by default.
Impact
======
A local attacker could trigger the buffer overflow by calling one of
these utilities with a carefully crafted command line, potentially
resulting in execution of arbitrary code with root privileges.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All ncpfs users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-fs/ncpfs-2.2.5"
References
==========
[ 1 ] Full Disclosure Advisory
http://lists.netsys.com/pipermail/full-disclosure/2004-November/029563.html
[ 2 ] CAN-2004-1079
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1079
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200412-09.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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