Medium: microcode_ctl

Issue Overview:

A flaw was found in hw. Processor optimization removal or modification of security-critical code for some Intel® processors may potentially allow an authenticated user to enable information disclosure via local access. (CVE-2022-21151)

A flaw was found in hw. Incomplete cleanup in specific special register read operations for some Intel® Processors may allow an authenticated user to enable information disclosure via local access. (CVE-2022-21127)

References to CVE-2022-21127 have been added after the original release of this advisory, however those vulnerabilities were fixed by the packages referenced by this advisory’s initial release on 2022-05-31.

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.amzn2.0.12.i686  
    microcode_ctl-debuginfo-2.1-47.amzn2.0.12.i686  
  
src:  
    microcode_ctl-2.1-47.amzn2.0.12.src  
  
x86_64:  
    microcode_ctl-2.1-47.amzn2.0.12.x86_64  
    microcode_ctl-debuginfo-2.1-47.amzn2.0.12.x86_64  

Additional References

Red Hat: CVE-2022-21127, CVE-2022-21151

Mitre: CVE-2022-21127, CVE-2022-21151