2024-12-08 03:06:42 +00:00

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{
"id": "CVE-2021-47486",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-05-22T09:15:10.573",
"lastModified": "2024-11-21T06:36:18.530",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv, bpf: Fix potential NULL dereference\n\nThe bpf_jit_binary_free() function requires a non-NULL argument. When\nthe RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps,\njit_data->header will be NULL, which triggers a NULL\ndereference. Avoid this by checking the argument, prior calling the\nfunction."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: riscv, bpf: corrige una posible desreferencia NULL La funci\u00f3n bpf_jit_binary_free() requiere un argumento que no sea NULL. Cuando el JIT BPF de RISC-V no logra converger en los pasos NR_JIT_ITERATION, jit_data->header ser\u00e1 NULL, lo que desencadena una desreferencia NULL. Evite esto verificando el argumento antes de llamar a la funci\u00f3n."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/27de809a3d83a6199664479ebb19712533d6fd9b",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/cac6b043cea3e120f4fccec16f7381747cbfdc0d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e1b80a5ebe5431caeb20f88c32d4a024777a2d41",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/27de809a3d83a6199664479ebb19712533d6fd9b",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/cac6b043cea3e120f4fccec16f7381747cbfdc0d",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/e1b80a5ebe5431caeb20f88c32d4a024777a2d41",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
]
}