cve/2020/CVE-2020-15706.md

CVE-2020-15706

Description

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.

POC

Reference

No PoCs from references.

Github

• https://github.com/DNTYO/F5_Vulnerability
• https://github.com/Jurij-Ivastsuk/WAXAR-shim-review
• https://github.com/Live-Hack-CVE/CVE-2020-15706
• https://github.com/NaverCloudPlatform/shim-review
• https://github.com/Rodrigo-NR/shim-review
• https://github.com/ctrliq/ciq-shim-build
• https://github.com/rhboot/shim-review
• https://github.com/synackcyber/BootHole_Fix
• https://github.com/vathpela/shim-review