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Gentoo Linux Security Advisory                           GLSA 200501-44
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: ncpfs: Multiple vulnerabilities
      Date: January 30, 2005
      Bugs: #77414
        ID: 200501-44

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Synopsis
=======
The ncpfs utilities contain multiple flaws, potentially resulting in
the remote execution of arbitrary code or local file access with
elevated privileges.

Background
=========
ncpfs is a NCP protocol network filesystem driver that allows access to
NetWare services, to mount volumes of NetWare servers or print to
NetWare print queues.

Affected packages
================
    -------------------------------------------------------------------
     Package       /  Vulnerable  /                         Unaffected
    -------------------------------------------------------------------
  1  net-fs/ncpfs       < 2.2.6                               >= 2.2.6

Description
==========
Erik Sjolund discovered two vulnerabilities in the programs bundled
with ncpfs: there is a potentially exploitable buffer overflow in
ncplogin (CAN-2005-0014), and due to a flaw in nwclient.c, utilities
using the NetWare client functions insecurely access files with
elevated privileges (CAN-2005-0013).

Impact
=====
The buffer overflow might allow a malicious remote NetWare server to
execute arbitrary code on the NetWare client. Furthermore, a local
attacker may be able to create links and access files with elevated
privileges using SUID ncpfs utilities.

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-2.2.6"

References
=========
  [ 1 ] CAN-2005-0013
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0013
  [ 2 ] CAN-2005-0014
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0014
  [ 3 ] ncpfs ChangeLog
        
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200501-44

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
https://bugs.gentoo.org/.

License
======
Copyright 2005 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.

https://creativecommons.org/licenses/by-sa/2.0/