Important: linux-firmware

Issue Overview:

Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution. (CVE-2023-31315)

Affected Packages:

linux-firmware

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 linux-firmware to update your system.

New Packages:

noarch:  
    linux-firmware-20200421-82.git78c0348.amzn2.noarch  
    iwl100-firmware-39.31.5.1-82.amzn2.noarch  
    iwl105-firmware-18.168.6.1-82.amzn2.noarch  
    iwl135-firmware-18.168.6.1-82.amzn2.noarch  
    iwl1000-firmware-39.31.5.1-82.amzn2.noarch  
    iwl2000-firmware-18.168.6.1-82.amzn2.noarch  
    iwl2030-firmware-18.168.6.1-82.amzn2.noarch  
    iwl3160-firmware-25.30.13.0-82.amzn2.noarch  
    iwl3945-firmware-15.32.2.9-82.amzn2.noarch  
    iwl4965-firmware-228.61.2.24-82.amzn2.noarch  
    iwl5000-firmware-8.83.5.1_1-82.amzn2.noarch  
    iwl5150-firmware-8.24.2.2-82.amzn2.noarch  
    iwl6000-firmware-9.221.4.1-82.amzn2.noarch  
    iwl6000g2a-firmware-18.168.6.1-82.amzn2.noarch  
    iwl6000g2b-firmware-18.168.6.1-82.amzn2.noarch  
    iwl6050-firmware-41.28.5.1-82.amzn2.noarch  
    iwl7260-firmware-25.30.13.0-82.amzn2.noarch  
  
src:  
    linux-firmware-20200421-82.git78c0348.amzn2.src  

Additional References

Red Hat: CVE-2023-31315

Mitre: CVE-2023-31315