Medium: microcode_ctl

Issue Overview:

Non-transparent sharing of return predictor targets between contexts in some Intel® Processors may allow an authorized user to potentially enable information disclosure via local access. (CVE-2023-38575)

Protection mechanism failure of bus lock regulator for some Intel® Processors may allow an unauthenticated user to potentially enable denial of service via network access. (CVE-2023-39368)

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.amzn2.4.17.i686  
    microcode_ctl-debuginfo-2.1-47.amzn2.4.17.i686  
  
src:  
    microcode_ctl-2.1-47.amzn2.4.17.src  
  
x86_64:  
    microcode_ctl-2.1-47.amzn2.4.17.x86_64  
    microcode_ctl-debuginfo-2.1-47.amzn2.4.17.x86_64  

Additional References

Red Hat: CVE-2023-38575, CVE-2023-39368

Mitre: CVE-2023-38575, CVE-2023-39368