This update for grub2 provides the following fixes:
A security issues with a bufferoverflow when reading username and password was fixed (bsc#956631, CVE-2015-8370)
Also following bugs were fixed:
{ "binaries": [ { "grub2-x86_64-efi": "2.00-0.54.2", "grub2-x86_64-xen": "2.00-0.54.2" } ] }
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2015:2385-1.json"