Red Hat Bugzilla – Bug 1463361
CVE-2017-9763 grub2: Stack exhaustion in grub_ext2_read_block
Last modified: 2017-06-20 12:03:50 EDT
The grub_ext2_read_block function in fs/ext2.c in GNU GRUB before 2013-11-12, as used in shlr/grub/fs/ext2.c in radare2 1.5.0, allows remote attackers to cause a denial of service (excessive stack use and application crash) via a crafted binary file, related to use of a variable-size stack array.
This issue did not affect the versions of grub as shipped with Red Hat Enterprise Linux 5 and 6 as they did not contain affected function. This issue did not affect the versions of grub2 as shipped with Red Hat Enterprise Linux 7 as the patch is in place.