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

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{
"id": "CVE-2024-47708",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-10-21T12:15:07.313",
"lastModified": "2024-10-24T13:45:19.677",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetkit: Assign missing bpf_net_context\n\nDuring the introduction of struct bpf_net_context handling for\nXDP-redirect, the netkit driver has been missed, which also requires it\nbecause NETKIT_REDIRECT invokes skb_do_redirect() which is accessing the\nper-CPU variables. Otherwise we see the following crash:\n\n\tBUG: kernel NULL pointer dereference, address: 0000000000000038\n\tbpf_redirect()\n\tnetkit_xmit()\n\tdev_hard_start_xmit()\n\nSet the bpf_net_context before invoking netkit_xmit() program within the\nnetkit driver."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netkit: Asignar bpf_net_context faltante Durante la introducci\u00f3n del manejo de struct bpf_net_context para la redirecci\u00f3n XDP, se ha omitido el controlador netkit, que tambi\u00e9n lo requiere porque NETKIT_REDIRECT invoca skb_do_redirect() que accede a las variables por CPU. De lo contrario, vemos el siguiente fallo: ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000038 bpf_redirect() netkit_xmit() dev_hard_start_xmit() Establezca bpf_net_context antes de invocar el programa netkit_xmit() dentro del controlador netkit."
}
],
"metrics": {
"cvssMetricV31": [
{
"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"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.11",
"versionEndExcluding": "6.11.2",
"matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181"
}
]
}
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}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/157f29152b61ca41809dd7ead29f5733adeced19",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/182c6fed8c7f62cddce0126ec1fc0da2b700fb11",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
}
]
}