| Package | Affected versions | Patched versions |
|---|---|---|
| grub2 | ≤ 2.04 | |
| openshift container platform | = 4.0 |
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.
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