[Full-disclosure] [ GLSA 200709-08 ] id3lib: Insecure temporary file creation

[Matthias Geerdsen]

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Gentoo Linux Security Advisory                           GLSA 200709-08
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: id3lib: Insecure temporary file creation
      Date: September 15, 2007
      Bugs: #189610
        ID: 200709-08

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Synopsis
========

A vulnerability has been discovered in id3lib allowing local users to
overwrite arbitrary files via a symlink attack.

Background
==========

id3lib is an open-source, cross-platform software development library
for reading, writing, and manipulating ID3v1 and ID3v2 tags.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  media-libs/id3lib     < 3.8.3-r6                      >= 3.8.3-r6

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

Nikolaus Schulz discovered that the function RenderV2ToFile() in file
src/tag_file.cpp creates temporary files in an insecure manner.

Impact
======

A local attacker could exploit this vulnerability via a symlink attack
to overwrite arbitrary files.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All id3lib users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/id3lib-3.8.3-r6"

References
==========

  [ 1 ] CVE-2007-4460
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4460

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

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

  http://security.gentoo.org/glsa/glsa-200709-08.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 at 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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