Vulnerability 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
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Coreos-Installer | < 0.10.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2021-3917PatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2018478Issue TrackingVendor Advisory
- https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b7PatchThird Party Advisory
- https://github.com/coreos/fedora-coreos-tracker/issues/889Issue TrackingPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3917PatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2018478Issue TrackingVendor Advisory
- https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b7PatchThird Party Advisory
- https://github.com/coreos/fedora-coreos-tracker/issues/889Issue TrackingPatchThird Party Advisory
FAQ
What is CVE-2021-3917?
CVE-2021-3917 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 pote...
How severe is CVE-2021-3917?
CVE-2021-3917 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3917?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Coreos-Installer.