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Status published
High
CVE-2021-20319
An improper signature verification vulnerability was found in coreos-installer. A...
Vulnerability Description
An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. An attacker able to modify the original installation image can write arbitrary data, and achieve full access to the node being installed.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Affected Software
coreos-installer
Vulnerable Versions:
Affects coreos-installer before v0.10.1, Fixed in v0.10.1.
Timeline
Official Publish:
March 4th, 2022
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H