VDB
ALPINE-CVE-2020-15705
ALPINE-CVE-2020-15705
PUBLISHED
CVSS 6.400000095367432 MEDIUM
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.
Risk Scores
CVSS v3.1
6.400000095367432
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.19 | grub | 2.04-r3, 2.04-r2, 2.04-r1 |
| Alpine:v3.18 | grub | 2.02-r19, 2.04-r3, 2.04-r2 |
| Alpine:v3.17 | grub | 2.04-r3, 2.02-r18, 0 |
| Alpine:v3.23 | grub | 2.02-r0, 2.02-r1, 2.02-r10 |
| Alpine:v3.20 | grub | 2.02-r4, 2.02-r0, 2.02-r1 |
| Alpine:v3.21 | grub | 2.04-r3, 2.04-r2, 2.04-r1 |
| Alpine:v3.22 | grub | 2.04-r3, 2.04-r2, 2.04-r1 |
Timeline
- Jul 29, 2020 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch