Advisory Published
Advisory Published

RHSA-2021:3322: Important: microcode_ctl security, bug fix and enhancement update

First published: Tue Aug 31 2021(Updated: )

The microcode_ctl packages provide microcode updates for Intel.<br>Security Fix(es):<br><li> hw: Vector Register Data Sampling (CVE-2020-0548)</li> <li> hw: L1D Cache Eviction Sampling (CVE-2020-0549)</li> <li> hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)</li> <li> hw: Information disclosure issue in Intel SGX via RAPL interface</li> (CVE-2020-8695)<br><li> hw: Vector Register Leakage-Active (CVE-2020-8696)</li> <li> hw: Fast forward store predictor (CVE-2020-8698)</li> <li> hw: vt-d related privilege escalation (CVE-2020-24489)</li> <li> hw: improper isolation of shared resources in some Intel Processors</li> (CVE-2020-24511)<br><li> hw: observable timing discrepancy in some Intel Processors</li> (CVE-2020-24512)<br>For more details about the security issue(s), including the impact, a CVSS<br>score, acknowledgments, and other related information, refer to the CVE<br>page(s) listed in the References section.

Affected SoftwareAffected VersionHow to fix

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Frequently Asked Questions

  • What is the severity of RHSA-2021:3322?

    The severity of RHSA-2021:3322 is classified as important.

  • How do I fix RHSA-2021:3322?

    To fix RHSA-2021:3322, you must update the microcode_ctl package to the latest version provided by your distribution.

  • What vulnerabilities are addressed by RHSA-2021:3322?

    RHSA-2021:3322 addresses several vulnerabilities including CVE-2020-0548, CVE-2020-0549, and CVE-2020-0543.

  • Is RHSA-2021:3322 applicable to my system?

    RHSA-2021:3322 is applicable to systems using Intel processors that require microcode updates.

  • What are the potential risks if RHSA-2021:3322 is not applied?

    If RHSA-2021:3322 is not applied, your system may remain vulnerable to exploits related to data sampling attacks on Intel architectures.

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