CVE-2020-15705
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2020
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
grub2 in Ubuntu
- Vendor
- Ubuntu
- Product
- grub2 in Ubuntu
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 20.04 LTS | affected | custom | 2.04-1ubuntu26.1 | Unavailable | None listed |
| 18.04 LTS | affected | custom | 2.02-2ubuntu8.16 | Unavailable | None listed |
| 16.04 LTS | affected | custom | 2.02~beta2-36ubuntu3.26 | Unavailable | None listed |
| 14.04 ESM | affected | custom | 2.02~beta2-9ubuntu1.20 | Unavailable | None listed |