RHSA-2021:3317 — Security Advisory

Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update

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Severity

Important

Red Hat Product Security

RHEL 7

Products

Official CSAF product identity

Published · August 31, 2021

Updated · October 9, 2026

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.

Related CVEs

RHSA-2021:3317 — Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update | PulseLinux