Meltdown and Spectre Status Update

On Tuesday, January 9, 2018 we released Ubuntu kernel updates for mitigation of CVE-2017-5754 (aka Meltdown / Variant 3) for the x86-64 architecture. Releases were made for the following supported Ubuntu series:

  • 12.04 ESM Precise (kernel v3.2)
  • 14.04 LTS Trusty (kernel v3.13)
  • 16.04 LTS Xenial (kernel v4.4)
  • 17.10 Artful (kernel v4.13)

Optimized kernels based on any of the above series were also released, including linux-aws, linux-azure, linux-gcp, and hardware enablement kernels. Updated cloud images have also been built and published to ensure a consistent Ubuntu experience. In our testing of the released Meltdown mitigations, we are observing that reductions in performance vary depending on the workload.

Ubuntu Zesty 17.04 will end-of-life on Saturday, January 13, 2018. As such, there will be no updates to kernel v4.10 to mitigate Meltdown or Spectre. Users of 17.04 will need to upgrade. As Precise 12.04 LTS has reached end-of-life, only Ubuntu Advantage customers with Extended Security Maintenance for Precise 12.04 will receive updated kernels.

Our focus has now shifted to the mitigation of CVE-2017-5753 and CVE-2017-5715 (aka Spectre / Variants 1 & 2). Microcode has been released for Intel processors (see USN-3531-1). Kernel updates will begin with releasing v4.13 for Artful 17.10 on Monday, January 15, 2018, with 16.04 to follow shortly.

In addition to releasing fixes for Spectre we will be expanding the Meltdown mitigation to other supported architectures.

The industry response to this unprecedented security vulnerability continues to evolve on a daily basis. The Ubuntu Engineering team is committed to delivering high-quality, proven fixes for these issues as they become available to ensure the Ubuntu experience remains as secure and consistent as possible.

 

Want professional Ubuntu support?

For organizations, Ubuntu Advantage is the assurance of enterprise-grade support and management tools.

Get Ubuntu Advantage ›

Talk to us today

Interested in running Ubuntu Desktop in your organisation?

Newsletter signup

Select topics you’re
interested in

In submitting this form, I confirm that I have read and agree to Canonical’s Privacy Notice and Privacy Policy.

Related posts

Announcing the new IBM LinuxONE III with Ubuntu

This is a guest blog by Kara Todd, Director, Linux, IBM Z and LinuxONE Enterprises today need the most secure, and flexible system to support their...

Machine Learning Operations (MLOps): Deploy at Scale

Artificial Intelligence and Machine Learning adoption in the enterprise is exploding from Silicon Valley to Wall Street with diverse use cases ranging from...

A guide to developing Android apps on Ubuntu

Android is the most popular mobile operating system and is continuing to grow its market share. IDC expects that Android will have 85.5% of the market by...