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nvd-json-data-feeds/CVE-2020/CVE-2020-255xx/CVE-2020-25578.json

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{
"id": "CVE-2020-25578",
"sourceIdentifier": "secteam@freebsd.org",
"published": "2021-03-26T21:15:12.600",
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"lastModified": "2024-11-21T05:18:09.560",
"vulnStatus": "Modified",
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"cveTags": [],
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"descriptions": [
{
"lang": "en",
"value": "In FreeBSD 12.2-STABLE before r368969, 11.4-STABLE before r369047, 12.2-RELEASE before p3, 12.1-RELEASE before p13 and 11.4-RELEASE before p7 several file systems were not properly initializing the d_off field of the dirent structures returned by VOP_READDIR. In particular, tmpfs(5), smbfs(5), autofs(5) and mqueuefs(5) were failing to do so. As a result, eight uninitialized kernel stack bytes may be leaked to userspace by these file systems."
},
{
"lang": "es",
"value": "En FreeBSD versiones 12.2-STABLE anteriores a r368969, 11.4-STABLE anteriores a r369047, 12.2-RELEASE anteriores a p3, 12.1-RELEASE anteriores a p13 y 11.4-RELEASE anteriores a p7, varios sistemas de archivos no estaban inicializando apropiadamente el campo d_off de las estructuras dirent devueltas por VOP_READDIR. En particular, tmpfs(5), smbfs(5), autofs(5) y mqueuefs(5) no lo hicieron. Como resultado, estos sistemas de archivos pueden filtrar ocho bytes de la pila del kernel no inicializados al espacio de usuario."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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"baseScore": 5.3,
"baseSeverity": "MEDIUM",
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"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
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"availabilityImpact": "NONE"
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},
"exploitabilityScore": 3.9,
"impactScore": 1.4
}
],
"cvssMetricV2": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
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"baseScore": 5.0,
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"accessVector": "NETWORK",
"accessComplexity": "LOW",
"authentication": "NONE",
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
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"availabilityImpact": "NONE"
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},
"baseSeverity": "MEDIUM",
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-665"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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],
"references": [
{
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc",
"source": "secteam@freebsd.org",
"tags": [
"Vendor Advisory"
]
},
{
"url": "https://security.netapp.com/advisory/ntap-20210423-0002/",
"source": "secteam@freebsd.org",
"tags": [
"Third Party Advisory"
]
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},
{
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
]
},
{
"url": "https://security.netapp.com/advisory/ntap-20210423-0002/",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
]
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}
]
}
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