CVE-2020-15706

GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions.

Date published : 2020-07-29

https://security.netapp.com/advisory/ntap-20200731-0008/

https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html