RHSA-2021:3027: microcode_ctl security update

RHSA-2021:3027, released August 9, 2021, fixes 9 CVEs in microcode_ctl (version 4:20210216-1.20210608.1.el8_4). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.0056

47th percentile

Priority of the 9 CVEs

Patch now 0
                                Urgent 0
                                High 1
                                Routine 8

Fixed package versions

Product	Release	Fixed in
microcode_ctl	RHEL 8	4:20210216-1.20210608.1.el8_4

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2020-24489	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Special Register Buffer Dat...	8.8	0.0035	None reported
Routine	CVE-2020-0549	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Special Register Buffer Dat...	6.5	0.0056	None reported
Routine	CVE-2020-0543	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Special Register Buffer Dat...	6.5	0.0054	None reported
Routine	CVE-2020-0548	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Special Register Buffer Dat...	5.5	0.0052	None reported
Routine	CVE-2020-8698	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Special Register Buffer Dat...	5.5	0.0052	None reported
Routine	CVE-2020-8696	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Special Register Buffer Dat...	5.5	0.0044	None reported
Routine	CVE-2020-8695	docker-stable: This update for docker-stable fixes the following issues: Note this update contains a already fixed references mostl...	5.5	0.0042	None reported
Routine	CVE-2020-24511	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Special Register Buffer Dat...	6.5	0.0040	None reported
Routine	CVE-2020-24512	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Special Register Buffer Dat...	3.3	0.0038	None reported

Also fixes CVE-2020-24489

ELSA-2021-3027
microcode_ctl on ol 8
intel-microcode 3.20210608.0ubuntu0.18.04.1
intel-microcode on Ubuntu 18.04.6 LTS (bionic)
intel-microcode 3.20210608.0ubuntu0.20.04.1
intel-microcode on Ubuntu 20.04 LTS (focal)

Vendor advisory

https://access.redhat.com/errata/RHSA-2021:3027

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/fix/linux/rhsa-2021-3027">RHSA-2021:3027 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Which servers are still behind?

Patchblox compares the installed package on every Linux machine against the fixed version for its release, including machines reported through Azure Update Manager.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.