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nvd-json-data-feeds/CVE-2018/CVE-2018-183xx/CVE-2018-18397.json
René Helmke 7791f18b51 bootstrap
2023-05-16 16:09:41 +02:00

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{
"id": "CVE-2018-18397",
"sourceIdentifier": "cve@mitre.org",
"published": "2018-12-12T10:29:00.240",
"lastModified": "2020-08-24T17:37:01.140",
"vulnStatus": "Analyzed",
"descriptions": [
{
"lang": "en",
"value": "The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c."
},
{
"lang": "es",
"value": "La implementaci\u00f3n de userfaultfd en el kernel de Linux en versiones anteriores a la 4.17 gestiona de manera incorrecta para ciertas llamadas ioctl UFFDIO_, tal y como queda demostrado al permitir que usuarios locales escriban datos en huecos en un archivo tmpfs (si el usuario tiene acceso de solo lectura a dicho archivo que contiene huecos). Esto est\u00e1 relacionado con fs/userfaultfd.c y mm/userfaultfd.c."
}
],
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"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM"
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"acInsufInfo": false,
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