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CVE-2021-3917

coreos-installer: restrict access permissions on /boot/ignition{,/config.ign}

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Severity

Low

Red Hat Product Security

0

CVSS 3.1

Review impact separately from score.

Published · July 7, 2021

Updated · November 22, 2025

Description

A flaw was found in the coreos-installer, where it writes the Ignition config to the target system with world-readable access permissions. This flaw allows a local attacker to have read access to potentially sensitive data. The highest threat from this vulnerability is to confidentiality.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 0
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:N

CWE-276 · Incorrect Default Permissions