Synopsis

microcode_ctl enhancement update

Type/Severity

Product Enhancement Advisory

Topic

Updated microcode_ctl packages that add one enhancement are now available for Red Hat Enterprise Linux 7.

Description

The microcode_ctl packages provide microcode updates for Intel and AMD processors.

This update adds the following enhancement:

• The Intel CPU microcode has been updated to the latest upstream version, which also provides new capabilities used by the Linux kernel to mitigate CVE-2018-3639, known as the Speculative Store Bypass vulnerability.
  

This update includes also microcode for Intel Xeon Processor E5 v4 and Intel Xeon Processor E7 v4; Core i7-69xx/68xx, family 6, model 0x4f,
stepping 0x1.

(BZ#1573456, BZ#1576334)

Users of microcode_ctl are advised to upgrade to these updated packages, which add this enhancement.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Note: a system reboot is necessary for this update to take effect.

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.5 x86_64

Fixes

• BZ - 1576334 - [RHEL-7] Include updated ucode for Broadwell EP/EX [rhel-7.5.z]

CVEs

(none)

References

• https://access.redhat.com/security/vulnerabilities/ssbd

Red Hat Enterprise Linux Server 7

SRPM
microcode_ctl-2.1-29.10.el7_5.src.rpm	SHA-256: 0d1c561dcad3198f3eb839b2a8016867079c281a0209b5070d51d3d5788f08ae
x86_64
microcode_ctl-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 05785e2c3189901f0009ec9dca9808e364d1bd30694ed4eee8986393b7b0cdc4
microcode_ctl-debuginfo-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 72619d25f0cb6b62d0b65e700b34e04162270095e10e80380a4a3a556174049b

Red Hat Enterprise Linux Server - Extended Update Support 7.5

SRPM
microcode_ctl-2.1-29.10.el7_5.src.rpm	SHA-256: 0d1c561dcad3198f3eb839b2a8016867079c281a0209b5070d51d3d5788f08ae
x86_64
microcode_ctl-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 05785e2c3189901f0009ec9dca9808e364d1bd30694ed4eee8986393b7b0cdc4
microcode_ctl-debuginfo-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 72619d25f0cb6b62d0b65e700b34e04162270095e10e80380a4a3a556174049b

Red Hat Enterprise Linux Workstation 7

SRPM
microcode_ctl-2.1-29.10.el7_5.src.rpm	SHA-256: 0d1c561dcad3198f3eb839b2a8016867079c281a0209b5070d51d3d5788f08ae
x86_64
microcode_ctl-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 05785e2c3189901f0009ec9dca9808e364d1bd30694ed4eee8986393b7b0cdc4
microcode_ctl-debuginfo-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 72619d25f0cb6b62d0b65e700b34e04162270095e10e80380a4a3a556174049b

Red Hat Enterprise Linux Desktop 7

SRPM
microcode_ctl-2.1-29.10.el7_5.src.rpm	SHA-256: 0d1c561dcad3198f3eb839b2a8016867079c281a0209b5070d51d3d5788f08ae
x86_64
microcode_ctl-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 05785e2c3189901f0009ec9dca9808e364d1bd30694ed4eee8986393b7b0cdc4
microcode_ctl-debuginfo-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 72619d25f0cb6b62d0b65e700b34e04162270095e10e80380a4a3a556174049b

Red Hat Enterprise Linux for Scientific Computing 7

SRPM
microcode_ctl-2.1-29.10.el7_5.src.rpm	SHA-256: 0d1c561dcad3198f3eb839b2a8016867079c281a0209b5070d51d3d5788f08ae
x86_64
microcode_ctl-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 05785e2c3189901f0009ec9dca9808e364d1bd30694ed4eee8986393b7b0cdc4
microcode_ctl-debuginfo-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 72619d25f0cb6b62d0b65e700b34e04162270095e10e80380a4a3a556174049b

Red Hat Enterprise Linux EUS Compute Node 7.5

SRPM
microcode_ctl-2.1-29.10.el7_5.src.rpm	SHA-256: 0d1c561dcad3198f3eb839b2a8016867079c281a0209b5070d51d3d5788f08ae
x86_64
microcode_ctl-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 05785e2c3189901f0009ec9dca9808e364d1bd30694ed4eee8986393b7b0cdc4
microcode_ctl-debuginfo-2.1-29.10.el7_5.x86_64.rpm	SHA-256: 72619d25f0cb6b62d0b65e700b34e04162270095e10e80380a4a3a556174049b