Описание
GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 2.02-2ubuntu8.16 |
| devel | not-affected | 2.06-2ubuntu18 |
| esm-infra-legacy/trusty | released | 2.02~beta2-9ubuntu1.20 |
| esm-infra-legacy/xenial | released | 2.02~beta2-36ubuntu3.26 |
| esm-infra/bionic | released | 2.02-2ubuntu8.16 |
| esm-infra/focal | released | 2.04-1ubuntu26.1 |
| esm-infra/xenial | released | 2.02~beta2-36ubuntu3.26 |
| focal | released | 2.04-1ubuntu26.1 |
| groovy | not-affected | 2.04-1ubuntu26.1 |
| hirsute | not-affected | 2.04-1ubuntu26.1 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 1.93.18 |
| devel | not-affected | 1.193 |
| eoan | ignored | end of life |
| esm-infra-legacy/trusty | released | 1.34.22 |
| esm-infra-legacy/xenial | released | 1.66.26 |
| esm-infra/bionic | released | 1.93.18 |
| esm-infra/focal | released | 1.142.3 |
| esm-infra/xenial | released | 1.66.26 |
| focal | released | 1.142.3 |
| groovy | not-affected | 1.147 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | 2.04-1ubuntu47.4 |
| devel | not-affected | 2.06-2ubuntu17 |
| esm-infra-legacy/trusty | DNE | |
| esm-infra-legacy/xenial | needed | |
| esm-infra/bionic | not-affected | 2.04-1ubuntu47.4 |
| esm-infra/focal | not-affected | 2.04-1ubuntu47.4 |
| esm-infra/xenial | ignored | end of ESM support, was needed |
| focal | not-affected | 2.04-1ubuntu47.4 |
| jammy | not-affected | 2.06-2ubuntu10 |
| kinetic | not-affected | 2.06-2ubuntu12 |
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Ссылки на источники
EPSS
4.4 Medium
CVSS2
6.4 Medium
CVSS3
Связанные уязвимости
GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.
GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.
GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim
GRUB2 fails to validate kernel signature when booted directly without ...
EPSS
4.4 Medium
CVSS2
6.4 Medium
CVSS3