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GHSA-8f93-j3fx-72f3

CRI-O has Potential High Memory Consumption from File Read

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-4437

Packages

EcosystemPackageAffectedFixed in
Go github.com/cri-o/cri-o <= 1.33.3 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.