CVE-2021-3917

Published: Aug 23, 2022Modified: Nov 21, 2024

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 1.8 / Impact: 3.6

Source: NVD

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.

Affected (1)

Products: Redhat: Coreos Installer

1 product

Coreos Installer

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Redhat Coreos Installer	Before 0.10.0

Related CWEs

Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

References (8)

https://access.redhat.com/security/cve/CVE-2021-3917

Source: secalert@redhat.com

PatchVendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2018478

Source: secalert@redhat.com

Issue TrackingVendor Advisory

https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c

Source: secalert@redhat.com

PatchThird Party Advisory

https://github.com/coreos/fedora-coreos-tracker/issues/889

Source: secalert@redhat.com

Issue TrackingPatchThird Party Advisory

https://access.redhat.com/security/cve/CVE-2021-3917

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2018478

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingVendor Advisory

https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://github.com/coreos/fedora-coreos-tracker/issues/889

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatchThird Party Advisory

Timeline

No history available yet.