Lookup: Insecure temporary file creation

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Gentoo Linux Security Advisory                          
GLSA 200712-07
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                                            http://security.gentoo.or
g/
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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-200
7-0237

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

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

  ht
tp://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
securitygentoo.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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