Medium: microcode_ctl

Issue Overview:

2024-05-09: CVE-2021-33117 was added to this advisory.

Improper access control for some 3rd Generation Intel® Xeon® Scalable Processors before BIOS version MR7, may allow a local attacker to potentially enable information disclosure via local access. (CVE-2021-33117)

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 write operations for some Intel® Processors may allow an authenticated user to enable information disclosure via local access. (CVE-2022-21166)

Affected Packages:

microcode_ctl

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

New Packages:

i686:  
    microcode_ctl-2.1-47.40.amzn1.i686  
    microcode_ctl-debuginfo-2.1-47.40.amzn1.i686  
  
src:  
    microcode_ctl-2.1-47.40.amzn1.src  
  
x86_64:  
    microcode_ctl-2.1-47.40.amzn1.x86_64  
    microcode_ctl-debuginfo-2.1-47.40.amzn1.x86_64  

Additional References

Red Hat: CVE-2021-33117, CVE-2022-21151, CVE-2022-21166

Mitre: CVE-2021-33117, CVE-2022-21151, CVE-2022-21166