Updated microcode for Spectre fix

[Leith Bade]

Intel have finally released the updated microcode for the Spectre bug.

See https://downloadcenter.intel.com/download/27431/Linux-Processor-Microcode-Data-File?v=t

From the release note:
Intel Processor Microcode Package for Linux
20180108 Release

-- Updates upon 20171117 release --
IVT C0 (06-3e-04:ed) 428->42a
SKL-U/Y D0 (06-4e-03:c0) ba->c2
BDW-U/Y E/F (06-3d-04:c0) 25->28
HSW-ULT Cx/Dx (06-45-01:72) 20->21
Crystalwell Cx (06-46-01:32) 17->18
BDW-H E/G (06-47-01:22) 17->1b
HSX-EX E0 (06-3f-04:80) 0f->10
SKL-H/S R0 (06-5e-03:36) ba->c2
HSW Cx/Dx (06-3c-03:32) 22->23
HSX C0 (06-3f-02:6f) 3a->3b
BDX-DE V0/V1 (06-56-02:10) 0f->14
BDX-DE V2 (06-56-03:10) 700000d->7000011
KBL-U/Y H0 (06-8e-09:c0) 62->80
KBL Y0 / CFL D0 (06-8e-0a:c0) 70->80
KBL-H/S B0 (06-9e-09:2a) 5e->80
CFL U0 (06-9e-0a:22) 70->80
CFL B0 (06-9e-0b:02) 72->80
SKX H0 (06-55-04:b7) 2000035->200003c
GLK B0 (06-7a-01:01) 1e->22

These should be released ASAP since they will be needed for the upcoming Spectre fixes in the Kernel.

[Leith Bade (ljbade)]

Should note the list seems to compare well with the only other list of Spectre microcode versions I am aware of on https://wiki.gentoo.org/wiki/Project:Security/Vulnerabilities/Meltdown_and_Spectre

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marc Deslauriers (mdeslaur)]

There are packages available in the security team PPA here:

https://launchpad.net/~ubuntu-security-proposed/+archive/ubuntu/ppa/+packages

They will be published today or tomorrow.

[Leith Bade (ljbade)]

@mdeslaur it seems that your package has one extra microcode compared to the file on intel.com:
sig 0x000506c9, pf_mask 0x03, 2017-03-25, rev 0x002c, size 16384

According to https://packages.qa.debian.org/i/intel-microcode/news/20180110T100610Z.html that file was removed compared to the "unofficial" release.

[Marc Deslauriers (mdeslaur)]

That's not what that means. I think it means the Debian package reverted to the 2017-03-25 version instead of the pre-release version that was newer.

We never shipped the pre-release version, hence we are shipping the 2017-03-25 version for the first time.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Leith Bade (ljbade)]

Ah I see, sorry for the confusion.

Just verified that the microcode.dat file in your PPA is identical to the one on intel.com

[Marc Deslauriers (mdeslaur)]

FYI, we are waiting to release these packages at the same time as a new linux-meta package in order to deploy the microcode updates on systems where the intel-microcode package never got installed.

See bug 1738259

[Marc Deslauriers (mdeslaur)]

Updates have been released:
https://usn.ubuntu.com/usn/usn-3531-1

[Leith Bade (ljbade)]

Intel have released more microcode updates to replace the ones they rolled back:
https://downloadcenter.intel.com/download/27591/Linux-Processor-Microcode-Data-File?v=t

[Simon Déziel (sdeziel)]

@ljbade, this update is currently in QA and you can help test it by enabling this PPA: https://launchpad.net/~ubuntu-security-proposed/+archive/ubuntu/ppa