2024-12-09 19:03:47 +00:00

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{
"id": "CVE-2021-47003",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-02-28T09:15:38.303",
"lastModified": "2024-12-09T18:25:35.537",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix potential null dereference on pointer status\n\nThere are calls to idxd_cmd_exec that pass a null status pointer however\na recent commit has added an assignment to *status that can end up\nwith a null pointer dereference. The function expects a null status\npointer sometimes as there is a later assignment to *status where\nstatus is first null checked. Fix the issue by null checking status\nbefore making the assignment.\n\nAddresses-Coverity: (\"Explicit null dereferenced\")"
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: dmaengine: idxd: corrige una posible desreferencia nula en el estado del puntero. Hay llamadas a idxd_cmd_exec que pasan un puntero de estado nulo, sin embargo, una confirmaci\u00f3n reciente agreg\u00f3 una asignaci\u00f3n a *status que puede terminar con una desreferencia de puntero nulo. La funci\u00f3n espera un puntero de estado nulo a veces, ya que hay una asignaci\u00f3n posterior a *status donde el estado se verifica por primera vez como nulo. Solucione el problema verificando el estado nulo antes de realizar la asignaci\u00f3n. Direcciones-Cobertura: (\"Nulo expl\u00edcito desreferenciado\")"
}
],
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"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
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