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    RedHat: RHSA-2020-2758:01 Moderate: microcode_ctl security,

    Date 29 Jun 2020
    497
    Posted By LinuxSecurity Advisories
    An update for microcode_ctl is now available for Red at Enterprise Linux 7.7 Extended 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
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Moderate: microcode_ctl security, bug fix and enhancement update
    Advisory ID:       RHSA-2020:2758-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2020:2758
    Issue date:        2020-06-29
    CVE Names:         CVE-2020-0543 CVE-2020-0548 CVE-2020-0549 
    =====================================================================
    
    1. Summary:
    
    An update for microcode_ctl is now available for Red at Enterprise Linux
    7.7 Extended 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.
    
    2. Relevant releases/architectures:
    
    Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) - x86_64
    Red Hat Enterprise Linux Server EUS (v. 7.7) - x86_64
    
    3. Description:
    
    Security Fix(es):
    
    * hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)
    
    * hw: L1D Cache Eviction Sampling (CVE-2020-0549)
    
    * hw: Vector Register Data Sampling (CVE-2020-0548)
    
    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):
    
    * Update Intel CPU microcode to microcode-20200609 release:
      - Update of 06-2d-06/0x6d (SNB-E/EN/EP C1/M0) microcode from revision
    0x61f
        up to 0x621;
      - Update of 06-2d-07/0x6d (SNB-E/EN/EP C2/M1) microcode from revision
    0x718
        up to 0x71a;
      - Update of 06-3c-03/0x32 (HSW C0) microcode from revision 0x27 up to
    0x28;
      - Update of 06-3d-04/0xc0 (BDW-U/Y E0/F0) microcode from revision 0x2e
        up to 0x2f;
      - Update of 06-45-01/0x72 (HSW-U C0/D0) microcode from revision 0x25
        up to 0x26;
      - Update of 06-46-01/0x32 (HSW-H C0) microcode from revision 0x1b up to
    0x1c;
      - Update of 06-47-01/0x22 (BDW-H/Xeon E3 E0/G0) microcode from revision
    0x21
        up to 0x22;
      - Update of 06-4e-03/0xc0 (SKL-U/Y D0) microcode from revision 0xd6
        up to 0xdc;
      - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000151
        up to 0x1000157;
      - Update of 06-55-04/0xb7 (SKX-SP H0/M0/U0, SKX-D M1) microcode
        (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2000065
        up to 0x2006906;
      - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x400002c
        up to 0x4002f01;
      - Update of 06-55-07/0xbf (CLX-SP B1) microcode from revision 0x500002c
        up to 0x5002f01;
      - Update of 06-5e-03/0x36 (SKL-H/S R0/N0) microcode from revision 0xd6
        up to 0xdc;
      - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46
        up to 0x78;
      - Update of 06-8e-09/0x10 (AML-Y22 H0) microcode from revision 0xca
        up to 0xd6;
      - Update of 06-8e-09/0xc0 (KBL-U/Y H0) microcode from revision 0xca
        up to 0xd6;
      - Update of 06-8e-0a/0xc0 (CFL-U43e D0) microcode from revision 0xca
        up to 0xd6;
      - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xca
        up to 0xd6;
      - Update of 06-8e-0c/0x94 (AML-Y42 V0, CML-Y42 V0, WHL-U V0) microcode
        from revision 0xca up to 0xd6;
      - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from
    revision
        0xca up to 0xd6;
      - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E3 U0) microcode from revision
    0xca
        up to 0xd6;
      - Update of 06-9e-0b/0x02 (CFL-S B0) microcode from revision 0xca up to
    0xd6;
      - Update of 06-9e-0c/0x22 (CFL-H/S P0) microcode from revision 0xca
        up to 0xd6;
      - Update of 06-9e-0d/0x22 (CFL-H R0) microcode from revision 0xca up to
    0xd6.
    * Do not update 06-4e-03 (SKL-U/Y) and 06-5e-03 (SKL-H/S/Xeon E3 v5) to
    revision
      0xdc, use 0xd6 by default.
    * Enable 06-2d-07 (SNB-E/EN/EP) caveat by default.
    * Enable 06-55-04 (SKL-SP/X/W) caveat by default.
    * Avoid find being SIGPIPE'd on early "grep -q" exit in the dracut script.
    * Re-generate initramfs not only for the currently running kernel,
      but for several recently installed kernels as well.
    * Change the URL in the intel-microcode2ucode.8 to point to the GitHub
      repository since the microcode download section at Intel Download Center
      does not exist anymore.
    
    4. 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
    
    5. Bugs fixed (https://bugzilla.redhat.com/):
    
    1788786 - CVE-2020-0548 hw: Vector Register Data Sampling
    1788788 - CVE-2020-0549 hw: L1D Cache Eviction Sampling
    1827165 - CVE-2020-0543 hw: Special Register Buffer Data Sampling (SRBDS)
    1849064 - [rhel-7.7.z] Enable SNB-EP caveat by default
    
    6. Package List:
    
    Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):
    
    Source:
    microcode_ctl-2.1-53.9.el7_7.src.rpm
    
    x86_64:
    microcode_ctl-2.1-53.9.el7_7.x86_64.rpm
    microcode_ctl-debuginfo-2.1-53.9.el7_7.x86_64.rpm
    
    Red Hat Enterprise Linux Server EUS (v. 7.7):
    
    Source:
    microcode_ctl-2.1-53.9.el7_7.src.rpm
    
    x86_64:
    microcode_ctl-2.1-53.9.el7_7.x86_64.rpm
    microcode_ctl-debuginfo-2.1-53.9.el7_7.x86_64.rpm
    
    These packages are GPG signed by Red Hat for security.  Our key and
    details on how to verify the signature are available from
    https://access.redhat.com/security/team/key/
    
    7. References:
    
    https://access.redhat.com/security/cve/CVE-2020-0543
    https://access.redhat.com/security/cve/CVE-2020-0548
    https://access.redhat.com/security/cve/CVE-2020-0549
    https://access.redhat.com/security/updates/classification/#moderate
    https://access.redhat.com/solutions/5142691
    https://access.redhat.com/solutions/l1d-cache-eviction-and-vector-register-sampling
    
    8. Contact:
    
    The Red Hat security contact is . More contact
    details at https://access.redhat.com/security/team/contact/
    
    Copyright 2020 Red Hat, Inc.
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