CVE-2025-4437
MEDIUM5.7EPSS 0.06%CRI-O has Potential High Memory Consumption from File Read
Published: 8/20/2025Modified: 8/29/2025
Description
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 packages (2)
- Go/github.com/cri-o/cri-ofrom 0, <= 1.33.3
- Go/github.com/cri-o/cri-ofrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |