fkie_cve-2022-48748
Vulnerability from fkie_nvd
Published
2024-06-20 12:15
Modified
2025-03-24 18:17
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix memory leak in __allowed_ingress When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdffPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdffPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.17


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F9E26D91-9F81-459D-BC57-8DC97F5DDA6B",
              "versionEndExcluding": "5.10.96",
              "versionStartIncluding": "5.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DF69DD7C-FD57-4914-ABB0-FAEF87B0289D",
              "versionEndExcluding": "5.15.19",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1AD9E77E-B27E-450C-8FD8-B64EC5FB002D",
              "versionEndExcluding": "5.16.5",
              "versionStartIncluding": "5.16",
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: vlan: fix memory leak in __allowed_ingress\n\nWhen using per-vlan state, if vlan snooping and stats are disabled,\nuntagged or priority-tagged ingress frame will go to check pvid state.\nIf the port state is forwarding and the pvid state is not\nlearning/forwarding, untagged or priority-tagged frame will be dropped\nbut skb memory is not freed.\nShould free skb when __allowed_ingress returns false."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: net: bridge: vlan: corrige la p\u00e9rdida de memoria en __allowed_ingress Cuando se usa el estado por VLAN, si la vigilancia de VLAN y las estad\u00edsticas est\u00e1n deshabilitadas, el marco de ingreso sin etiquetar o con etiqueta de prioridad ir\u00e1 a verificar pvid estado. Si el estado del puerto est\u00e1 reenviando y el estado del pvid no est\u00e1 aprendiendo/reenviando, se descartar\u00e1 la trama sin etiquetar o con etiqueta de prioridad, pero no se liberar\u00e1 la memoria skb. Deber\u00eda liberar skb cuando __allowed_ingress devuelva falso."
    }
  ],
  "id": "CVE-2022-48748",
  "lastModified": "2025-03-24T18:17:51.687",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2024-06-20T12:15:13.047",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098"
    },
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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