Cri-o: large /etc/passwd file may lead to denial of service_CVE-2025-4437

{
    "lastseen": "",
    "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.",
    "published": "2025-08-20T12:19:18.453Z",
    "modified": "2025-08-20T12:19:18.453Z",
    "type": "cve",
    "title": "Cri-o: large /etc/passwd file may lead to denial of service",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2025-4437\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2375084",
    "id": "CVE-2025-4437",
    "bulletinFamily": "",
    "cwe": [
        "CWE-770"
    ],
    "cvelist": null,
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    "cvss": {
        "score": 5.7,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
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        "availabilityImpact": "",
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    "href": "",
    "category_name": "CVE",
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    "product": "Red Hat OpenShift Container Platform 4",
    "version": "",
    "vendor": "Red Hat",
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