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Sicherheit: Pufferüberlauf in ncpfs
Aktuelle Meldungen Distributionen
Name: Pufferüberlauf in ncpfs
ID: 200412-09
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Do, 16. Dezember 2004, 12:00
Referenzen: Keine Angabe
Applikationen: ncplogin

Originalnachricht

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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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