CVE-2025-4437: There's a vulnerability in the CRI-O application where when container is launched with securityContext.runAsUser specifying a non-existent user, CRI-O attempts…

PriorityP427medium5.7CVSS 3.1

AVNACLPRLUIRSUCNINAH

EPSS

0.22%

12.9th percentile

There's a vulnerability in the CRI-O application where when container is launched with securityContext.runAsUser specifying a non-existent user, CRI-O attempts to create the user, reading the container's entire /etc/passwd file into memory. If this file is excessively large, it can cause the a high memory consumption leading applications to be killed due to out-of-memory. As a result a denial-of-service can be achieved, possibly disrupting other pods and services running in the same host.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
github.com	cri-o_cri-o	0 – 1.33.3	—

CVSS provenance

nvdv3.15.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

vendor_redhat5.7MEDIUM

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