Medium: microcode_ctl

Issue Overview:

A flaw was found in the Intel Advanced Vector Extensions (AVX) implementation, where a local authenticated attacker with the ability to execute AVX instructions can gather the AVX register state from previous AVX executions. This vulnerability allows information disclosure of the AVX register state. (CVE-2020-8696)

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.amzn2.0.9.i686  
    microcode_ctl-debuginfo-2.1-47.amzn2.0.9.i686  
  
src:  
    microcode_ctl-2.1-47.amzn2.0.9.src  
  
x86_64:  
    microcode_ctl-2.1-47.amzn2.0.9.x86_64  
    microcode_ctl-debuginfo-2.1-47.amzn2.0.9.x86_64  

Additional References

Red Hat: CVE-2020-8696

Mitre: CVE-2020-8696