[ GLSA 200701-19 ] OpenLDAP: Insecure usage of /tmp during installation

[Raphael Marichez <falco () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200701-19
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                                            http://security.gentoo.org/
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  Severity: Low
     Title: OpenLDAP: Insecure usage of /tmp during installation
      Date: January 23, 2007
      Bugs: #159508
        ID: 200701-19

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Synopsis
========

A shell script commonly released with OpenLDAP makes insecure usage of
files in /tmp during the emerge process.

Background
==========

OpenLDAP Software is an open source implementation of the Lightweight
Directory Access Protocol.

Affected packages
=================

    -------------------------------------------------------------------
     Package           /   Vulnerable   /                   Unaffected
    -------------------------------------------------------------------
  1  net-nds/openldap     < 2.1.30-r10                   >= 2.1.30-r10
                                                          >= 2.2.28-r7
                                                          >= 2.3.30-r2
     net-nds/openldap      < 2.2.28-r7                   >= 2.1.30-r10
                                                          >= 2.2.28-r7
                                                          >= 2.3.30-r2
     net-nds/openldap      < 2.3.30-r2                   >= 2.1.30-r10
                                                          >= 2.2.28-r7
                                                          >= 2.3.30-r2

Description
===========

Tavis Ormandy of the Gentoo Linux Security Team has discovered that the
file gencert.sh distributed with the Gentoo ebuild for OpenLDAP does
not exit upon the existence of a directory in /tmp during installation
allowing for directory traversal.

Impact
======

A local attacker could create a symbolic link in /tmp and potentially
overwrite arbitrary system files upon a privileged user emerging
OpenLDAP.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All OpenLDAP users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose "net-nds/openldap"

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200701-19.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 2007 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/2.5

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