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[gentoo-announce] [ GLSA 201304-01 ] NVIDIA Drivers: Privilege escalation

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Gentoo Linux Security Advisory GLSA 201304-01

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http://security.gentoo.org/

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Severity: High

Title: NVIDIA Drivers: Privilege escalation

Date: April 08, 2013

Bugs: #429614, #464248

ID: 201304-01

 

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Synopsis

========

 

Two vulnerabilities in NVIDIA drivers may allow a local attacker to

gain escalated privileges.

 

Background

==========

 

The NVIDIA drivers provide X11 and GLX support for NVIDIA graphic

boards.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 x11-drivers/nvidia-drivers

< 304.88 >= 304.88

 

Description

===========

 

Two vulnerabilities have been discovered in NVIDIA drivers:

 

* A vulnerability has been found in the way NVIDIA drivers handle

read/write access to GPU device nodes, allowing access to arbitrary

system memory locations (CVE-2012-4225).

* A buffer overflow error has been discovered in NVIDIA drivers

(CVE-2013-0131).

 

NOTE: Exposure to CVE-2012-4225 is reduced in Gentoo due to 660

permissions being used on the GPU device nodes by default.

 

Impact

======

 

A local attacker could gain escalated privileges.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All NVIDIA driver users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot -v ">=x11-drivers/nvidia-drivers-304.88"

 

References

==========

 

[ 1 ] CVE-2012-4225

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4225

[ 2 ] CVE-2013-0131

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0131

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-201304-01.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

https://bugs.gentoo.org.

 

License

=======

 

Copyright 2013 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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