SUSE-SU-2022:2037-1

This update for grub2 fixes the following issues:

Security fixes and hardenings for boothole 3 / boothole 2022 (bsc#1198581)

• CVE-2021-3695: Fixed that a crafted PNG grayscale image could lead to out-of-bounds write in heap (bsc#1191184)

• CVE-2021-3696: Fixed that a crafted PNG image could lead to out-of-bound write during huffman table handling (bsc#1191185)

• CVE-2021-3697: Fixed that a crafted JPEG image could lead to buffer underflow write in the heap (bsc#1191186)

• CVE-2022-28733: Fixed fragmentation math in net/ip (bsc#1198460)

• CVE-2022-28734: Fixed an out-of-bound write for split http headers (bsc#1198493)

• CVE-2022-28736: Fixed a use-after-free in chainloader command (bsc#1198496)

• Update SBAT security contact (bsc#1193282)

• Bump grub's SBAT generation to 2

• Use boot disks in OpenFirmware, fixing regression caused when the root LV is completely in the boot LUN (bsc#1197948)