Expected Behavior Violation Affecting grub2-efi-aa64-modules package, versions <1:2.02-87.el8_2


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.1% (43rd percentile)

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  • Snyk IDSNYK-CENTOS8-GRUB2EFIAA64MODULES-2045547
  • published26 Jul 2021
  • disclosed29 Jul 2020

Introduced: 29 Jul 2020

CVE-2020-15705  (opens in a new tab)
CWE-440  (opens in a new tab)

How to fix?

Upgrade Centos:8 grub2-efi-aa64-modules to version 1:2.02-87.el8_2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-efi-aa64-modules package and not the grub2-efi-aa64-modules package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1