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Gentoo Linux Security Advisory                           GLSA 200611-03
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  Severity: High
     Title: NVIDIA binary graphics driver: Privilege escalation
            vulnerability
      Date: November 07, 2006
      Bugs: #151635
        ID: 200611-03

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Synopsis
========

The NVIDIA binary graphics driver is vulnerable to a local privilege
escalation through an X session.

Background
==========

The NVIDIA binary graphics driver from NVIDIA Corporation provides the
kernel module and the GL modules for graphic acceleration on the NVIDIA
based graphic cards.

Affected packages
=================

    -------------------------------------------------------------------
     Package                     /  Vulnerable  /           Unaffected
    -------------------------------------------------------------------
  1  x11-drivers/nvidia-drivers     < 1.0.8776             >= 1.0.8776
                                                            < 1.0-8762

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

Rapid7 reported a boundary error in the NVIDIA binary graphics driver
that leads to a buffer overflow in the accelerated rendering
functionality.

Impact
======

An X client could trigger the buffer overflow with a maliciously
crafted series of glyphs. A remote attacker could also entice a user to
open a specially crafted web page, document or X client that will
trigger the buffer overflow. This could result in the execution of
arbitrary code with root privileges or at least in the crash of the X
server.

Workaround
==========

Disable the accelerated rendering functionality in the Device section
of xorg.conf :
    Option      "RenderAccel" "false"

Resolution
==========

NVIDIA binary graphics driver users should upgrade to the latest
version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-drivers/nvidia-drivers-1.0.8776"

References
==========

  [ 1 ] CVE-2006-5379
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5379

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

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

  http://security.gentoo.org/glsa/glsa-200611-03.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 2006 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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