Уязвимость конфигурационного файла Grub, связанная с настройками прав доступа по умолчанию, позволяющая нарушителю получить доступ к конфиденциальным данным

Уязвимость механизма защиты паролем загрузчика операционных систем Grub2, позволяющая нарушителю обойти установленный контроль доступа

A flaw in grub2 was found where its configuration file, known as grub.cfg, is being created with the wrong permission set allowing non privileged users to read its content. This represents a low severity confidentiality issue, as those users can eventually read any encrypted passwords present in grub.cfg. This flaw affects grub2 2.06 and previous versions. This issue has been fixed in grub upstream but no version with the fix is currently released.

An authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file that contains the password hash for the GRUB password protection feature. An attacker capable of attaching an external drive such as a USB stick containing a file system with a duplicate UUID (the same as in the "/boot/" file system) can bypass the GRUB password protection feature on UEFI systems, which enumerate removable drives before non-removable ones. This issue was introduced in a downstream patch in Red Hat's version of grub2 and does not affect the upstream package.

Предложение добавить в grub --class altlinux

grub-mkrescue не находит /usr/share/grub/unicode.pf2

grub-efi не находит grub.cfg на ноутбуке Acer Swift 3

grub-efi-autoupdate для removable

Default kernel isn't /boot/vmlinuz

grub не может определить файловую систему, созданную xfsprogs 6.6.0-alt1

Не загружается grub-pc 2.12-alt1 (Legacy BIOS)