RHSA-2020:5184: Moderate: microcode_ctl security, bug fix and enhancement update

Published Nov 23, 2020
·
Updated

The microcodectl packages provide microcode updates for Intel.Security Fix(es): hw: Vector Register Leakage-Active (CVE-2020-8696) hw: Fast forward store predictor (CVE-2020-8698) Bug Fix(es) and Enhancement(s): Update Intel CPU microcode to microcode-202010112 release, addresses: Addition of 06-55-0b/0xbf (CPX-SP A1) microcode at revision 0x700001e; Addition of 06-8a-01/0x10 (LKF B2/B3) microcode at revision 0x28; Addition of 06-8c-01/0x80 (TGL-UP3/UP4 B1) microcode at revision 0x68; Addition of 06-a5-02/0x20 (CML-H R1) microcode at revision 0xe0; Addition of 06-a5-03/0x22 (CML-S 6+2 G1) microcode at revision 0xe0; Addition of 06-a5-05/0x22 (CML-S 10+2 Q0) microcode at revision 0xe0; Addition of 06-a6-01/0x80 (CML-U 6+2 v2 K0) microcode at revision 0xe0; Update of 06-4e-03/0xc0 (SKL-U/U 2+3e/Y D0/K1) microcode (in intel-06-4e-03/intel-ucode/06-4e-03) from revision 0xdc up to 0xe2; Update of 06-55-04/0xb7 (SKX-D/SP/W/X H0/M0/M1/U0) microcode (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2006906 up to 0x2006a08; Update of 06-5e-03/0x36 (SKL-H/S/Xeon E3 N0/R0/S0) microcode (in intel-06-5e-03/intel-ucode/06-5e-03) from revision 0xdc up to 0xe2; Update of 06-7a-01/0x01 (GLK B0) microcode from revision 0x32 up to 0x34; Update of 06-8e-09/0x10 (AML-Y 2+2 H0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-09) from revision 0xd6 up to 0xde; Update of 06-8e-09/0xc0 (KBL-U/U 2+3e/Y H0/J1) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-09) from revision 0xd6 up to 0xde; Update of 06-8e-0a/0xc0 (CFL-U 4+3e D0, KBL-R Y0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0a) from revision 0xd6 up to 0xe0; Update of 06-8e-0b/0xd0 (WHL-U W0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0b) from revision 0xd6 up to 0xde; Update of 06-8e-0c/0x94 (AML-Y 4+2 V0, CML-U 4+2 V0, WHL-U V0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0c) from revision 0xd6 up to 0xde; Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-09) from revision 0xd6 up to 0xde; Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E U0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0a) from revision 0xd6 up to 0xde; Update of 06-9e-0b/0x02 (CFL-E/H/S B0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0b) from revision 0xd6 up to 0xde; Update of 06-9e-0c/0x22 (CFL-H/S/Xeon E P0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0c) from revision 0xd6 up to 0xde; Update of 06-9e-0d/0x22 (CFL-H/S/Xeon E R0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0d) from revision 0xd6 up to 0xde; Update of 06-3f-02/0x6f (HSX-E/EN/EP/EP 4S C0/C1/M1/R2) microcode from revision 0x43 up to 0x44; Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000157 up to 0x1000159; Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x4002f01 up to 0x4003003; Update of 06-55-07/0xbf (CLX-SP/W/X B1/L1) microcode from revision 0x5002f01 up to 0x5003003; Update of 06-5c-09/0x03 (APL D0) microcode from revision 0x38 up to 0x40; Update of 06-5c-0a/0x03 (APL B1/F1) microcode from revision 0x16 up to 0x1e; Update of 06-7a-08/0x01 (GLK-R R0) microcode from revision 0x16 up to 0x18; Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x78 up to 0xa0; Update of 06-a6-00/0x80 (CML-U 6+2 A0) microcode from revision 0xca up to 0xe0. Add a README file to the documentation directory. (BZ#1890355, BZ#1890356, BZ#1893237, BZ#1893242)

Affected Software

1 affected component
redhat/microcode_ctl

Remediation

Event History

Jun 4, 2026
Advisory Published
via Red Hat·06:17 PM
Data Sourced
via Red Hat·06:17 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2020:5184?

The severity of RHSA-2020:5184 is classified as moderate.

2

How do I fix RHSA-2020:5184?

To fix RHSA-2020:5184, update the microcode_ctl packages to the latest version provided by your distribution.

3

Which vulnerabilities are addressed in RHSA-2020:5184?

RHSA-2020:5184 addresses two vulnerabilities: CVE-2020-8696 (Vector Register Leakage-Active) and CVE-2020-8698 (Fast forward store predictor).

4

What is the purpose of the microcode_ctl packages related to RHSA-2020:5184?

The microcode_ctl packages provide microcode updates specifically for Intel CPUs to address security and performance issues.

5

What happens if I do not apply the RHSA-2020:5184 update?

If you do not apply the RHSA-2020:5184 update, your system may remain exposed to the specified vulnerabilities that could affect its security.

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