Описание
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.
Отчет
This vulnerability impacts only a specific User-Provisioned Infrastructure (UPI) installation flow where coreos-installer is used and when gzip-compressed images are configured as the installation source. Because this flow does not occur in default usage, Red Hat considers this case as a Moderate impact flaw.
Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
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.
coreos-installer improperly verifies GPG signature when decompressing gzipped artifact
EPSS
7.5 High
CVSS3