RHSA-2021:3255: Important: microcode_ctl security, bug fix and enhancement update
The microcodectl packages provide microcode updates for Intel.<br>Security Fix(es):<br><li> hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)</li> <li> hw: Vector Register Data Sampling (CVE-2020-0548)</li> <li> hw: L1D Cache Eviction Sampling (CVE-2020-0549)</li> <li> hw: vt-d related privilege escalation (CVE-2020-24489)</li> <li> hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511)</li> <li> hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512)</li> <li> hw: Information disclosure issue in Intel SGX via RAPL interface (CVE-2020-8695)</li> <li> hw: Vector Register Leakage-Active (CVE-2020-8696)</li> <li> hw: Fast forward store predictor (CVE-2020-8698)</li>
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:3255?
The severity of RHSA-2021:3255 is classified as important due to its impact on security concerning microcode vulnerabilities.
How do I fix RHSA-2021:3255?
To fix RHSA-2021:3255, update the microcode_ctl package to the latest version provided by your distribution.
What vulnerabilities are addressed by RHSA-2021:3255?
RHSA-2021:3255 addresses vulnerabilities related to Special Register Buffer Data Sampling (CVE-2020-0543), Vector Register Data Sampling (CVE-2020-0548), and L1D Cache Eviction Sampling (CVE-2020-0549).
Who is affected by RHSA-2021:3255?
Users of Intel processors that require microcode updates are affected by RHSA-2021:3255.
Is RHSA-2021:3255 relevant for all Linux distributions?
RHSA-2021:3255 is primarily relevant for Red Hat and its derivatives, as it pertains to updates from the microcode_ctl package.