接上篇《【转】Intel安全说明：关于对应侧信道分析的事实》

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：

Security Bulletin: NVIDIA Driver Security Updates for CPU Speculative Side Channel Vulnerabilities

Answer ID 4611

Updated 01/10/2018 11:18 AM

NVIDIA driver response to CPU speculative side channel vulnerabilities - CVE-2017-5753, CVE-2017-5715, CVE-2017-5754

Bulletin Summary

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

Vulnerability Details

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

CVE-2017-5753

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

CVE-2017-5715

Computer systems with microprocessors utilizing speculative execution and indirect 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

CVE-2017-5754

Computer systems with microprocessors utilizing speculative execution 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.

Updated Products

Security Updates for CPU Speculative Side Channel Vulnerabilities

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.

http://nvidia.flexnetoperations.com/

Windows

Linux

Notes

• 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.

Acknowledgements

None.

Get the Most Up to Date Product Security Information

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 History

Frequently Asked Questions (FAQs)

How do I know what driver version I have installed?

1. Launch Windows Device Manager.

2. Select Display Adapters.

3. Select the NVIDIA GPU node and right-click.

4. 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。

Linux* Processor Microcode Data File

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