CVE-2021-3917

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2021-3917	Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2018478	Issue Tracking Vendor Advisory
https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c	Patch Third Party Advisory
https://github.com/coreos/fedora-coreos-tracker/issues/889	Issue Tracking Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:redhat:coreos-installer:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-08-23 20:15

Updated : 2024-02-28 19:29

NVD link : CVE-2021-3917

Mitre link : CVE-2021-3917

CVE.ORG link : CVE-2021-3917

JSON object : View

Products Affected

redhat

coreos-installer

CWE

CWE-276

Incorrect Default Permissions

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