fkie_cve-2024-49568
Vulnerability from fkie_nvd
Published
2025-01-11 13:15
Modified
2025-10-15 20:28
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg When receiving proposal msg in server, the fields v2_ext_offset/ eid_cnt/ism_gid_cnt in proposal msg are from the remote client and can not be fully trusted. Especially the field v2_ext_offset, once exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt before using them.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdfPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F34747F2-80C3-4A5F-B90C-8AA75BA74E17",
              "versionEndExcluding": "6.6.68",
              "versionStartIncluding": "5.10",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "811AC89A-14AC-49FA-9B54-E99526F1CA47",
              "versionEndExcluding": "6.12.7",
              "versionStartIncluding": "6.7",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13",
              "vulnerable": true
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              "vulnerable": true
            },
            {
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              "matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg\n\nWhen receiving proposal msg in server, the fields v2_ext_offset/\neid_cnt/ism_gid_cnt in proposal msg are from the remote client\nand can not be fully trusted. Especially the field v2_ext_offset,\nonce exceed the max value, there has the chance to access wrong\naddress, and crash may happen.\n\nThis patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt\nbefore using them."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/smc: comprobar v2_ext_offset/eid_cnt/ism_gid_cnt al recibir un mensaje de propuesta Al recibir un mensaje de propuesta en el servidor, los campos v2_ext_offset/eid_cnt/ism_gid_cnt en el mensaje de propuesta son del cliente remoto y no se puede confiar plenamente en ellos. Especialmente el campo v2_ext_offset, una vez que se excede el valor m\u00e1ximo, existe la posibilidad de acceder a una direcci\u00f3n incorrecta y puede producirse un bloqueo. Este parche comprueba los campos v2_ext_offset/eid_cnt/ism_gid_cnt antes de usarlos."
    }
  ],
  "id": "CVE-2024-49568",
  "lastModified": "2025-10-15T20:28:45.940",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-01-11T13:15:23.637",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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