NVClock: Insecure file usage

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Gentoo Linux Security Advisory                          
GLSA 200707-08
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                                            http://security.gentoo.or
g/
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  Severity: Normal
     Title: NVClock: Insecure file usage
      Date: July 24, 2007
      Bugs: #184071
        ID: 200707-08

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Synopsis
========

A vulnerability has been discovered in NVClock, allowing for
the
execution of arbitrary code.

Background
==========

NVClock is an utility for changing NVidia graphic chipsets
internal
frequency.

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

   
------------------------------------------------------------
-------
     Package              /  Vulnerable  /                 
Unaffected
   
------------------------------------------------------------
-------
  1  media-video/nvclock      < 0.7-r2                   
   >= 0.7-r2

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

Tavis Ormandy of the Gentoo Linux Security Team discovered
that NVClock
makes usage of an insecure temporary file in the /tmp
directory.

Impact
======

A local attacker could create a specially crafted temporary
file in
/tmp to execute arbitrary code with the privileges of the
user running
NVCLock.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All NVClock users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
">=media-video/nvclock-0.7-r2"

References
==========

  [ 1 ] CVE-2007-3531
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-200
7-3531

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

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

  ht
tp://security.gentoo.org/glsa/glsa-200707-08.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
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