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RHEA-2018:2299 – Product Enhancement Advisory

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.

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]

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