CVE-2021-20319

High

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.

SeverityHigh
CVSS7.8
Exploit probability—
ProductRedhat Coreos-installer
PublishedMar 4, 2022
First seenMar 4, 2022
Weakness typeCWE-347CWE-347

How to fix

Update
  • redhat coreos-installer0.10.1 or later

Affected products

ProductAffected versionsFixed in
redhat coreos-installerv < 0.10.10.10.1

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