CVE-2020-14372 Detail

Undergoing Analysis


This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary.

Description

A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat from this vulnerability is to data confidentiality and integrity, as well as system availability.

Severity

CVSS 3.x Severity and Metrics:

CVSS 2.0 Severity and Metrics:

References to Advisories, Solutions, and Tools

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Weakness Enumeration

CWE-ID CWE Name Source
CWE-184 Incomplete List of Disallowed Inputs Red Hat, Inc.  

Change History

0 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-14372
NVD Published Date:
03/03/2021
NVD Last Modified:
03/03/2021
Source:
Red Hat, Inc.