请求告知Ubuntu指定版本修复Meltdown/Spectre漏洞的精确内核版本

Got it, let's break down the exact kernel versions you need for each of your Ubuntu releases to properly patch against Meltdown (CVE-2017-5754) and Spectre (CVE-2017-5753):

Ubuntu 14.04.3 LTS (Trusty Tahr) #

• Standard kernel: Minimum version 3.13.0-139.188 — any subsequent updates to the 3.13.x kernel series will also include the vulnerability fixes
• HWE (Hardware Enablement) kernel (if you're using the 14.04.3 HWE stack for newer hardware): Minimum version 4.4.0-109.132

Ubuntu 16.04 LTS (Xenial Xerus) #

• Standard kernel: Minimum version 4.4.0-109.132
• HWE kernel (for systems running newer hardware stacks):
  • 4.10 series: Minimum version 4.10.0-42.46
  • 4.13 series: Minimum version 4.13.0-36.40

Ubuntu 14.04.5 LTS Cloud Image #

This shares the same kernel requirements as the base Ubuntu 14.04 LTS release:

• Standard kernel: 3.13.0-139.188 or higher
• HWE kernel (if included in your cloud image): 4.4.0-109.132 or higher

Ubuntu 16.04 LTS Cloud Image #

Matches the kernel requirements for the base Ubuntu 16.04 LTS release:

• Standard kernel: 4.4.0-109.132 or higher
• HWE kernel (if applicable): 4.10.0-42.46 or higher

Quick Way to Check Your Current Kernel #

To confirm if your system already has a patched kernel, run this command in the terminal:

uname -r

If the output is equal to or higher than the minimum versions listed above, your system is protected against these two vulnerabilities.

内容的提问来源于stack exchange，提问作者Nidhi