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Gentoo Linux: CVE-2020-15706: GRUB: Multiple vulnerabilities

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Gentoo Linux: CVE-2020-15706: GRUB: Multiple vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/29/2020
Created
05/04/2021
Added
05/03/2021
Modified
05/03/2021

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.

Solution(s)

  • gentoo-linux-upgrade-sys-devel-grub

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