Important: exim

Issue Overview:

Exim allows remote code execution as root in some unusual configurations that use the ${sort } expansion for items that can be controlled by an attacker (e.g., $local_part or $domain). ( CVE-2019-13917)

Affected Packages:

exim

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

New Packages:

i686:  
    exim-mon-4.92-1.23.amzn1.i686  
    exim-debuginfo-4.92-1.23.amzn1.i686  
    exim-greylist-4.92-1.23.amzn1.i686  
    exim-pgsql-4.92-1.23.amzn1.i686  
    exim-4.92-1.23.amzn1.i686  
    exim-mysql-4.92-1.23.amzn1.i686  
  
src:  
    exim-4.92-1.23.amzn1.src  
  
x86_64:  
    exim-mysql-4.92-1.23.amzn1.x86_64  
    exim-mon-4.92-1.23.amzn1.x86_64  
    exim-pgsql-4.92-1.23.amzn1.x86_64  
    exim-4.92-1.23.amzn1.x86_64  
    exim-greylist-4.92-1.23.amzn1.x86_64  
    exim-debuginfo-4.92-1.23.amzn1.x86_64  

Additional References

Red Hat: CVE-2019-13917

Mitre: CVE-2019-13917