Uočen je i ispravljen novi sigurnosni propust u radu programskog paketa NVIDIA Drivers. Lokalni je napadač spomenuti propust mogao iskoristiti za dobivanje većih ovlasti i otkrivanje osjetljivih podataka.
Paket:
nvidia-graphics-drivers
Operacijski sustavi:
Gentoo Linux
Kritičnost:
4
Problem:
nepravilno rukovanje ovlastima
Iskorištavanje:
lokalno
Posljedica:
dobivanje većih privilegija, otkrivanje osjetljivih informacija
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2012-0946
Izvorni ID preporuke:
GLSA 201206-19
Izvor:
Gentoo
Problem:
Sigurnosni propust je posljedica pogrešnog rukovanja čitanjem i pisanjem u procesor, što dovodi do pristupa proizvoljnim sistemskim memorijskim lokacijama.
Posljedica:
Lokalni napadač spomenutu ranjivost može iskoristiti za pregled određenih podataka povećanje ovlasti.
Rješenje:
Svim se korisnicima navedenog programskog paketa savjetuje njegova nadogradnja na novije inačice.
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Gentoo Linux Security Advisory GLSA 201206-19
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http://security.gentoo.org/
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Severity: High
Title: NVIDIA Drivers: Privilege escalation
Date: June 23, 2012
Bugs: #411617
ID: 201206-19
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Synopsis
========
A vulnerability 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
< 295.40 >= 295.40
Description
===========
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.
NOTE: Exposure to this vulnerability 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-295.40"
References
==========
[ 1 ] CVE-2012-0946
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0946
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201206-19.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
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite. or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2012 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
Posljednje sigurnosne preporuke