Issued:

2020-11-11

Updated:

2020-11-11

RHSA-2020:5084 - Moderate: microcode_ctl security, bug fix, and enhancement update

Synopsis

Moderate: microcode_ctl security, bug fix, and enhancement update

Type/Severity

Security Advisory Moderate

Topic

An update for microcode_ctl is now available for Red Hat Enterprise Linux 6.

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

Security Fix(es):

• hw: Vector Register Leakage-Active (CVE-2020-8696)

• hw: Fast forward store predictor (CVE-2020-8698)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) and Enhancement(s):

• Update Intel CPU microcode to microcode-20201027 release, addresses:

  • Addition of 06-55-0b/0xbf (CPX-SP A1) microcode at revision 0x700001e;
  • 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-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 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 containing metadata information from the microcode file headers.

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

Updated Packages

• microcode_ctl-1.17-33.31.el6_10.x86_64.rpm
• microcode_ctl-debuginfo-1.17-33.31.el6_10.i686.rpm
• microcode_ctl-debuginfo-1.17-33.31.el6_10.x86_64.rpm
• microcode_ctl-1.17-33.31.el6_10.i686.rpm
• microcode_ctl-1.17-33.31.el6_10.src.rpm

Fixes

• This content is not included.BZ - 1890355
• This content is not included.BZ - 1890356

CVEs

• CVE-2020-8696
• CVE-2020-8698

References

• https://access.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.