fkie_cve-2023-53033
Vulnerability from fkie_nvd
Published
2025-03-27 17:15
Modified
2025-03-28 18:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits If the offset + length goes over the ethernet + vlan header, then the length is adjusted to copy the bytes that are within the boundaries of the vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet + vlan header are copied directly from the skbuff data area. Fix incorrect arithmetic operator: subtract, not add, the size of the vlan header in case of double-tagged packets to adjust the length accordingly to address CVE-2023-0179.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits\n\nIf the offset + length goes over the ethernet + vlan header, then the\nlength is adjusted to copy the bytes that are within the boundaries of\nthe vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet +\nvlan header are copied directly from the skbuff data area.\n\nFix incorrect arithmetic operator: subtract, not add, the size of the\nvlan header in case of double-tagged packets to adjust the length\naccordingly to address CVE-2023-0179."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nft_payload: aritm\u00e9tica incorrecta al obtener bits del encabezado VLAN. Si el desplazamiento + longitud sobrepasa el encabezado Ethernet + VLAN, esta se ajusta para copiar los bytes dentro de los l\u00edmites del \u00e1rea de borrador vlan_ethhdr. Los bytes restantes m\u00e1s all\u00e1 del encabezado Ethernet + VLAN se copian directamente del \u00e1rea de datos skbuff. Se corrige el operador aritm\u00e9tico incorrecto: restar, no sumar, el tama\u00f1o del encabezado VLAN en el caso de paquetes con doble etiqueta para ajustar la longitud seg\u00fan la soluci\u00f3n CVE-2023-0179."
    }
  ],
  "id": "CVE-2023-53033",
  "lastModified": "2025-03-28T18:11:40.180",
  "metrics": {},
  "published": "2025-03-27T17:15:53.120",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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