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6.4 Moyenne

CVE-2020-15705 GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed

Description

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.

Produits et versions touchés

Produit Versions touchées Corrigé en
grub2 in Ubuntu 2.04 premières → < 2.04-1ubuntu26.1 2.04-1ubuntu26.1
grub2 in Ubuntu 2.02 premières → < 2.02-2ubuntu8.16 2.02-2ubuntu8.16

Autres CVE de grub2 in Ubuntu

Les 3 CVE de grub2 in Ubuntu →
CVE-2020-15707 Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of… 5.7 Moyenne CVE-2020-15706 GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can… 6.4 Moyenne
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