Medium: microcode_ctl

Issue Overview:

2024-05-09: CVE-2022-33196 was added to this advisory.

Insufficient granularity of access control in out-of-band management in some Intel® Atom and Intel Xeon Scalable Processors may allow a privileged user to potentially enable escalation of privilege via adjacent network access. (CVE-2022-21216)

Incorrect default permissions in some memory controller configurations for some Intel® Xeon® Processors when using Intel® Software Guard Extensions which may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2022-33196)

Incorrect calculation in microcode keying mechanism for some 3rd Generation Intel® Xeon® Scalable Processors may allow a privileged user to potentially enable information disclosure via local access. (CVE-2022-33972)

Improper isolation of shared resources in some Intel® Processors when using Intel® Software Guard Extensions may allow a privileged user to potentially enable information disclosure via local access. (CVE-2022-38090)

Affected Packages:

microcode_ctl

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update microcode_ctl to update your system.

New Packages:

i686:  
    microcode_ctl-2.1-47.amzn2.0.15.i686  
    microcode_ctl-debuginfo-2.1-47.amzn2.0.15.i686  
  
src:  
    microcode_ctl-2.1-47.amzn2.0.15.src  
  
x86_64:  
    microcode_ctl-2.1-47.amzn2.0.15.x86_64  
    microcode_ctl-debuginfo-2.1-47.amzn2.0.15.x86_64  

Additional References

Red Hat: CVE-2022-21216, CVE-2022-33196, CVE-2022-33972, CVE-2022-38090

Mitre: CVE-2022-21216, CVE-2022-33196, CVE-2022-33972, CVE-2022-38090