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 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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.7
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
- EPSS probability
- 0.25%
- CWE
- CWE-770
- Published
- 2025-08-20
- Last modified
- 2026-09-01
Weakness type
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