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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-14372 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/security/vulnerabilities/RHSB-2021-003 Patch  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1873150 Issue Tracking  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/
https://security.gentoo.org/glsa/202104-05 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20210416-0004/ Third Party Advisory 

Weakness Enumeration

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

Known Affected Software Configurations Switch to CPE 2.2

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-14372
NVD Published Date:
03/03/2021
NVD Last Modified:
11/06/2023
Source:
Red Hat, Inc.