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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 3.1
6.400000095367432
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Alpine:v3.19grub0, 0, 2.04-r3
Alpine:v3.18grub2.02-r19, 0, 0
Alpine:v3.17grub0, 0, 2.02-r18
Alpine:v3.23grub2.02-r4, 2.02-r1, 2.02-r10
Alpine:v3.24grub0, 0
Alpine:v3.20grub2.02-r2, 2.02-r0, 2.02-r1
Alpine:v3.21grub0, 0, 2.04-r3
Alpine:v3.22grub0, 0, 2.04-r3

Timeline

  • Jul 29, 2020 CVE Published
  • Apr 30, 2026 Distribution Patch
  • Jun 15, 2026 CVE Updated
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