CVE-2021-3917

Aliases:GHSA-862g-9h5m-m3qv
Advisory lineage Upstream: 0 Downstream: 2
Modified
Published: 23 Aug 2022, 19:03
Last modified:03 Aug 2024, 17:09

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.11% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Aug 2022, 19:03
Published
Vulnerability first disclosed
03 Aug 2024, 17:09
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Trends

Current EPSS score: 0.11%• Percentile: 28%

Techniques & Countermeasures

  • CWE-276•Incorrect Default Permissions

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

Affected Systems

  • Crates.Io•coreos-installer

    < 0.10.0

  • redhat•coreos-installer

    < 0.10.0

References (8)