vulnerability

CentOS Linux: CVE-2020-15706: Moderate: grub2 security update (Multiple Advisories)

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Severity
6
CVSS
(AV:L/AC:M/Au:M/C:C/I:C/A:C)
Published
Jul 29, 2020
Added
Jul 30, 2020
Modified
Jan 28, 2025

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.

Solutions

centos-upgrade-fwupdcentos-upgrade-fwupd-debuginfocentos-upgrade-fwupd-debugsourcecentos-upgrade-fwupdatecentos-upgrade-fwupdate-debuginfocentos-upgrade-fwupdate-develcentos-upgrade-fwupdate-eficentos-upgrade-fwupdate-libscentos-upgrade-grub2centos-upgrade-grub2-commoncentos-upgrade-grub2-debuginfocentos-upgrade-grub2-debugsourcecentos-upgrade-grub2-efi-aa64-modulescentos-upgrade-grub2-efi-ia32centos-upgrade-grub2-efi-ia32-cdbootcentos-upgrade-grub2-efi-ia32-modulescentos-upgrade-grub2-efi-x64centos-upgrade-grub2-efi-x64-cdbootcentos-upgrade-grub2-efi-x64-modulescentos-upgrade-grub2-pccentos-upgrade-grub2-pc-modulescentos-upgrade-grub2-ppc-modulescentos-upgrade-grub2-ppc64-modulescentos-upgrade-grub2-ppc64le-modulescentos-upgrade-grub2-toolscentos-upgrade-grub2-tools-debuginfocentos-upgrade-grub2-tools-eficentos-upgrade-grub2-tools-efi-debuginfocentos-upgrade-grub2-tools-extracentos-upgrade-grub2-tools-extra-debuginfocentos-upgrade-grub2-tools-minimalcentos-upgrade-grub2-tools-minimal-debuginfocentos-upgrade-mokutilcentos-upgrade-mokutil-debuginfocentos-upgrade-shim-ia32centos-upgrade-shim-unsigned-ia32centos-upgrade-shim-unsigned-x64centos-upgrade-shim-x64

References

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