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Red Hat Product Errata RHSA-2020:5188 - Security Advisory
Issued:
2020-11-23
Updated:
2020-11-23

RHSA-2020:5188 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: microcode_ctl security, bug fix and enhancement update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for microcode_ctl is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The microcode_ctl packages provide microcode updates for Intel.

Security Fix(es):

  • hw: Information disclosure issue in Intel SGX via RAPL interface (CVE-2020-8695)
  • 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-20201112 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 06-8e-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-01/0x01 (GLK B0) microcode from revision 0x32 up

to 0x34;

  • 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.

  • Disable 06-8c-01 (TGL-UP3/UP4 B1) microcode update by default.
  • Add README file to the documentation directory.
  • Add publicly-sourced codenames list to supply to gen_provides.sh; update

the latter to handle the somewhat different format.

  • Add SUMMARY.intel-ucode file

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

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

Affected Products

  • Red Hat Enterprise Linux Server - AUS 7.2 x86_64

Fixes

  • BZ - 1828583 - CVE-2020-8695 hw: Information disclosure issue in Intel SGX via RAPL interface
  • BZ - 1890355 - CVE-2020-8696 hw: Vector Register Leakage-Active
  • BZ - 1890356 - CVE-2020-8698 hw: Fast forward store predictor

CVEs

  • CVE-2020-8695
  • CVE-2020-8696
  • CVE-2020-8698

References

  • https://access.redhat.com/security/updates/classification/#moderate
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server - AUS 7.2

SRPM
microcode_ctl-2.1-12.34.el7_2.src.rpm SHA-256: 9f14bcb24fcf282776f182f765633c5810a5935630c796d2bbec06962dce0089
x86_64
microcode_ctl-2.1-12.34.el7_2.x86_64.rpm SHA-256: 27654ae5ad7e0f1f772727162dfa2cd10dc29169c91a3ff5e02923e2d15f1a73
microcode_ctl-debuginfo-2.1-12.34.el7_2.x86_64.rpm SHA-256: 543e84f7990a8cad928349b944635dcbd61b6fb4f083d235c54745d0c52a0e46

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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