The grub2 packages provide version 2 of the Grand Unified Boot Loader , a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. Security Fix: * grub2: grub2-set-bootflag utility causes grubenv corruption rendering the system non-bootable For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.