Important: sudo

Issue Overview:

When sudo is configured to allow a user to run commands as an arbitrary user via the ALL keyword in a Runas specification, it is possible to run commands as root by specifying the user ID -1 or 4294967295.

This can be used by a user with sufficient sudo privileges to run commands as root even if the Runas specification explicitly disallows root access as long as the ALL keyword is listed first in the Runas specification. (CVE-2019-14287)

Further details can be found here: https://www.sudo.ws/alerts/minus_1_uid.html

Affected Packages:

sudo

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

New Packages:

i686:  
    sudo-debuginfo-1.8.6p3-29.28.amzn1.i686  
    sudo-devel-1.8.6p3-29.28.amzn1.i686  
    sudo-1.8.6p3-29.28.amzn1.i686  
  
src:  
    sudo-1.8.6p3-29.28.amzn1.src  
  
x86_64:  
    sudo-devel-1.8.6p3-29.28.amzn1.x86_64  
    sudo-debuginfo-1.8.6p3-29.28.amzn1.x86_64  
    sudo-1.8.6p3-29.28.amzn1.x86_64  

Additional References

Red Hat: CVE-2019-14287

Mitre: CVE-2019-14287