Issued:
2021-08-31
Updated:
2021-08-31

RHSA-2021:3317 - Important: microcode_ctl security, bug fix and enhancement update

Synopsis

Important: microcode_ctl security, bug fix and enhancement update

Type/Severity

Security Advisory Important

Topic

An update for microcode_ctl is now available for Red Hat Enterprise Linux 7.6 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

  • hw: Vector Register Data Sampling (CVE-2020-0548)

  • hw: L1D Cache Eviction Sampling (CVE-2020-0549)

  • hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)

  • 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)

  • hw: vt-d related privilege escalation (CVE-2020-24489)

  • hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511)

  • hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512)

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.

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

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions7.6x86_64
Red Hat Enterprise Linux Server - TUS7.6x86_64
Red Hat Enterprise Linux Server - AUS7.6x86_64

Updated Packages

  • microcode_ctl-2.1-47.23.el7_6.x86_64.rpm
  • microcode_ctl-debuginfo-2.1-47.23.el7_6.x86_64.rpm
  • microcode_ctl-2.1-47.23.el7_6.src.rpm

Fixes

CVEs

References

Additional information