{
  "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"
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    }
  ]
}