[ GLSA 200803-23 ] Website META Language: Insecure temporary file usage

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

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Gentoo Linux Security Advisory                           GLSA 200803-23
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Website META Language: Insecure temporary file usage
      Date: March 15, 2008
      Bugs: #209927
        ID: 200803-23

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Synopsis
========

Multiple insecure temporary file vulnerabilities have been discovered
in the Website META Language.

Background
==========

Website META Language is a free and extensible Webdesigner's off-line
HTML generation toolkit for Unix.

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

    -------------------------------------------------------------------
     Package       /   Vulnerable   /                       Unaffected
    -------------------------------------------------------------------
  1  dev-lang/wml      < 2.0.11-r3                        >= 2.0.11-r3

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

Temporary files are handled insecurely in the files
wml_backend/p1_ipp/ipp.src, wml_contrib/wmg.cgi, and
wml_backend/p3_eperl/eperl_sys.c, allowing users to overwrite or delete
arbitrary files with the privileges of the user running the program.

Impact
======

Local users can exploit the insecure temporary file vulnerabilities via
symlink attacks to perform certain actions with escalated privileges.

Workaround
==========

Restrict access to the temporary directory to trusted users only.

Resolution
==========

All Website META Language users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/wml-2.0.11-r3"

References
==========

  [ 1 ] CVE-2008-0665
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0665
  [ 2 ] CVE-2008-0666
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0666

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

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

  http://security.gentoo.org/glsa/glsa-200803-23.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 2008 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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