[ GLSA 200712-07 ] Lookup: Insecure temporary file creation

[Pierre-Yves Rofes <py () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200712-07
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Lookup: Insecure temporary file creation
      Date: December 09, 2007
      Bugs: #197306
        ID: 200712-07

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Synopsis
========

Lookup uses temporary files in an insecure manner, allowing for a
symlink attack.

Background
==========

Lookup is a search interface to books and dictionnaries for Emacs.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  app-emacs/lookup       < 1.4.1                           >= 1.4.1

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

Tatsuya Kinoshita reported that the ndeb-binary function does not
handle temporay files correctly.

Impact
======

A local attacker could use a symlink attack to overwrite files with the
privileges of the user running Lookup.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Lookup users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-emacs/lookup-1.4.1"

References
==========

  [ 1 ] CVE-2007-0237
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0237

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

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

  http://security.gentoo.org/glsa/glsa-200712-07.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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