CVE-2021-3917
MEDIUMcoreos-installer < 0.10.0 - Incorrect Default Permissions in Ignition Config
Title source: llmDescription
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.
References (4)
Core 4
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/coreos/fedora-coreos-tracker/issues/889
Patch, Third Party Advisory x_refsource_misc
https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c
Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2018478
Patch, Vendor Advisory x_refsource_misc
https://access.redhat.com/security/cve/CVE-2021-3917
Scores
CVSS v3
5.5
EPSS
0.0011
EPSS Percentile
28.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-276
Status
published
Products (2)
crates.io/coreos-installer
0 - 0.10.0crates.io
redhat/coreos-installer
< 0.10.0
Published
Aug 23, 2022
Tracked Since
Feb 18, 2026