fkie_cve-2024-49997
Vulnerability from fkie_nvd
Published
2024-10-21 18:15
Modified
2024-11-08 16:15
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2dbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
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              "versionEndExcluding": "5.10.227",
              "versionStartIncluding": "3.0",
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            {
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            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: lantiq_etop: fix memory disclosure\n\nWhen applying padding, the buffer is not zeroed, which results in memory\ndisclosure. The mentioned data is observed on the wire. This patch uses\nskb_put_padto() to pad Ethernet frames properly. The mentioned function\nzeroes the expanded buffer.\n\nIn case the packet cannot be padded it is silently dropped. Statistics\nare also not incremented. This driver does not support statistics in the\nold 32-bit format or the new 64-bit format. These will be added in the\nfuture. In its current form, the patch should be easily backported to\nstable versions.\n\nEthernet MACs on Amazon-SE and Danube cannot do padding of the packets\nin hardware, so software padding must be applied."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ethernet: lantiq_etop: fix memory breach Al aplicar relleno, el b\u00fafer no se pone a cero, lo que da como resultado la divulgaci\u00f3n de memoria. Los datos mencionados se observan en el cable. Este parche usa skb_put_padto() para rellenar los marcos Ethernet correctamente. La funci\u00f3n mencionada pone a cero el b\u00fafer expandido. En caso de que el paquete no se pueda rellenar, se descarta silenciosamente. Las estad\u00edsticas tampoco se incrementan. Este controlador no admite estad\u00edsticas en el antiguo formato de 32 bits ni en el nuevo formato de 64 bits. Estos se agregar\u00e1n en el futuro. En su forma actual, el parche deber\u00eda poder retroportarse f\u00e1cilmente a versiones estables. Las MAC de Ethernet en Amazon-SE y Danube no pueden realizar relleno de los paquetes en hardware, por lo que se debe aplicar relleno de software."
    }
  ],
  "id": "CVE-2024-49997",
  "lastModified": "2024-11-08T16:15:40.220",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-10-21T18:15:19.837",
  "references": [
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      "tags": [
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      "tags": [
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    },
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    },
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-212"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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