Updated microcode for Spectre fix

Bug #1742364 reported by Leith Bade on 2018-01-10
308
This bug affects 8 people
Affects Status Importance Assigned to Milestone
intel
Undecided
Unassigned
intel-microcode (Ubuntu)
Critical
Unassigned
Trusty
Undecided
Unassigned
Xenial
Undecided
Unassigned
Zesty
Undecided
Unassigned
Artful
Undecided
Unassigned
Bionic
Critical
Unassigned

Bug Description

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.

CVE References

Leith Bade (ljbade) wrote :
information type: Private Security → Public Security
Leith Bade (ljbade) wrote :

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) wrote :

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

Changed in intel-microcode (Ubuntu):
status: New → Confirmed
Adolfo Jayme (fitojb) on 2018-01-10
Changed in intel-microcode (Ubuntu):
status: Confirmed → Triaged
importance: Undecided → Critical
Marc Deslauriers (mdeslaur) wrote :

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) wrote :

@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) wrote :

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) wrote :

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

Changed in intel-microcode (Ubuntu Artful):
status: New → Confirmed
Changed in intel-microcode (Ubuntu Trusty):
status: New → Confirmed
Changed in intel-microcode (Ubuntu Xenial):
status: New → Confirmed
Changed in intel-microcode (Ubuntu Zesty):
status: New → Confirmed
Leith Bade (ljbade) wrote :

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) wrote :

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) wrote :

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

Changed in intel-microcode (Ubuntu Trusty):
status: Confirmed → Fix Released
Changed in intel-microcode (Ubuntu Xenial):
status: Confirmed → Fix Released
Changed in intel-microcode (Ubuntu Zesty):
status: Confirmed → Fix Released
Changed in intel-microcode (Ubuntu Artful):
status: Confirmed → Fix Released
Changed in intel-microcode (Ubuntu Bionic):
status: Triaged → Fix Released
Changed in intel:
status: New → Incomplete
status: Incomplete → Fix Released
Leith Bade (ljbade) wrote :

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) wrote :

@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

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