CVE-2021-20319

State: Published
Severity: Not scored
Published: Mar 4, 2022
Updated: Aug 3, 2024
Reserved: Dec 17, 2020

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.

Scores

The record has no CVSS score.

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
coreos-installern/a	Affects coreos-installer before v0.10.1, Fixed in v0.10.1.Affected

References

https://bugzilla.redhat.com/show_bug.cgi?id=2011862
https://github.com/coreos/coreos-installer/security/advisories/GHSA-3r3g-g73x-g593
https://github.com/coreos/coreos-installer/pull/659/commits/ad243c6f0eff2835b2da56ca5f7f33af76253c89

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