Spectre漏洞扩大至GPU：NVIDIA、Intel补丁下载说明Security Bulletin: NVIDIA Driver Security Updates for CPU Speculative Side Channel VulnerabilitiesLinux* Processor Microcode Data File

无论实际安全影响有多大，我想有些用户、系统厂商不得不更新软件了。本文整理了来自网络的一些信息，供读者朋友参考。

NVIDIA在官方网站上发布安全公告确认，NVIDIA产品不会受到Meltdown漏洞影响(因为它是Intel架构专属的)，但是在另一个漏洞Spectre面前，GeForce、Quadro、NVS、Tesla、GRID全部沦陷！

其中，GeForce、Quadro、NVS系列搭配Windows、Linux、FreeBSD、Solaris系统均受影响，Tesla系列搭配Windows、Linux系统受影响，GRID搭配Windows、Windows Server Hyper-V、Linux、Citrix XenServer、VMware vSphere、Red Hat KVM受影响。

目前，NVIDIA正在为旗下产品推送新的驱动程序，其中就包含漏洞修复补丁，其中GeForce、Quadro、NVS系列的Windows新驱动版本号为390.65/386.07，Linux新驱动版本为390.12/384.111，均已经提供下载，建议更新。

下面是来自 http://nvidia.custhelp.com/app/answers/detail/a_id/4611 的声明：

Answer ID 4611

Updated 01/10/2018 11:18 AM

NVIDIA is providing an initial security update to mitigate aspects of

Google Project Zero’s January 3, 2018 publication of novel information

disclosure attacks that combine CPU speculative execution with known

side channels.

NVIDIA's core business is GPU computing.

We believe our GPU hardware is immune to the reported security

issue. As for our driver software, we are providing updates to help

mitigate the CPU security issue.

The vulnerability has three known variants:

Variant 1 (CVE-2017-5753): CPU mitigations are provided with

the security update included in this bulletin. NVIDIA expects to work

together with its ecosystem partners on future updates to further

strengthen mitigations for affected CPUs.

Variant 2 (CVE-2017-5715): NVIDIA’s initial analysis

indicates that NVIDIA software running on affected CPUs may require

further updates. NVIDIA expects to work together with its ecosystem

partners on this variant.

Variant 3 (CVE-2017-5754): At this time, NVIDIA has no reason

to believe that NVIDIA software is vulnerable to this variant when

running on affected CPUs.

For updates and additional information, actively monitor the NVIDIA Product Security page.

https://www.nvidia.com/product-security

The following sections summarize the vulnerabilities. Descriptions are as published on MITRE and risk assessments follow CVSS.

Computer systems with microprocessors utilizing speculative execution

and branch prediction may allow unauthorized disclosure of information

to an attacker with local user access via a side-channel analysis.

CVSS Base Score: 8.2

CVSS Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

and indirect branch prediction may allow unauthorized disclosure of

information to an attacker with local user access via a side-channel

analysis.

may allow unauthorized disclosure of information to an attacker with

local user access via a side-channel analysis of the data cache.

CVSS Base Score: 7.9

CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

NVIDIA’s risk assessment is based on an average of risk across a

diverse set of installed systems and may not represent the true risk of

your local installation. NVIDIA recommends consulting a security or IT

professional to evaluate the risk of your specific configuration.

Product

OS

GeForce, Quadro, NVS Driver Software

Windows, Linux, FreeBSD, Solaris

Tesla Driver Software

Windows, Linux

GRID Driver Software

Windows, Windows Server with Hyper-V, Linux, Citrix XenServer, VMware vSphere, and Red Hat KVM

When available, download the updates from the NVIDIA Driver Downloads page.

http://www.nvidia.com/Download/index.aspx

If you are an Enterprise Service customer using NVIDIA GRID, visit the NVIDIA Licensing Center to obtain NVIDIA GRID updates.

http://nvidia.flexnetoperations.com/

If you are an Enterprise Service customer using DGX-1 or DGX Station, visit the NVIDIA Enterprise Portal for guidance.

Product Series

Driver Branch

Updated Version

GeForce

All

Windows

R390

390.65

Quadro, NVS

R384

386.07

Tesla

Expected week of January 22, 2018

GRID

Windows, Windows Server with Hyper-V

R367

Expected before the end of January 2018

Linux, FreeBSD, Solaris

390.12

384.111

Linux

Linux, Citrix XenServer, VMware vSphere, and Red Hat KVM

The Linux driver contains updates to maintain compatibility with recent Linux updates for this security issue.

If you are using earlier driver branches of the affected products,

upgrade to a supported driver branch that contains the udpate as listed

in the tables for Windows and Linux.

None.

To learn more about the vulnerability management process followed by

the NVIDIA Product Security Incident Response Team (PSIRT), see the

current list of NVIDIA security bulletins, or subscribe to security

bulletin notifications, go to NVIDIA Product Security.

Revision

Date

Description

5.0

January 10, 2018

Added clarification that GPU hardware is not affected and that NVIDIA is updating its drivers to help mitigate the CPU security issue

4.0

January 9, 2018

Added information about updated NVIDIA GRID products

3.0

Added the driver version for Tesla Compute on Windows and Linux

2.0

January 8, 2018

Added the driver version for GeForce and Quadro, NVS on Windows

1.0

January 4, 2018

Initial release

Launch Windows Device Manager.

Select Display Adapters.

Select the NVIDIA GPU node and right-click.

Go to the Driver tab.

The driver version can be deciphered as shown in the following examples: 10.18.13.6472 is 364.72 and 10.18.13.472 is 304.72

现在，Intel也发布了面向Linux系统的微代码更新补丁，可以在各个Linux发行版上修复所有受影响CPU的漏洞。

支持的操作系统涵盖了近些年的几乎所有流行发行版本：Red Hat Enterprise Linux 7.4/7.3/7.2/7.1/7.0、Red Hat Enterprise Linux 6.8/6.7/6.6/6.5/6.4/6.3/6.2、SUSE Linux Enterprise Server 12/SP3/SP2/SP1、SUSE Linux Enterprise Server 11/SP4/SP3/SP2/SP1、SUSE Linux Enterprise Server (SLES) 12.2、CentOS 7.4/7.3/7.2/7.1/7.0、Debian 8.x/7.x、Fedora 24/23、Ubuntu 16.04 LTS/14.04 LTS。

https://downloadcenter.intel.com/downloads/eula/27431/Linux-Processor-Microcode-Data-File?httpDown=https%3A%2F%2Fdownloadmirror.intel.com%2F27431%2Feng%2Fmicrocode-20180108.tgz