fkie_cve-2021-47002
Vulnerability from fkie_nvd
Published
2024-02-28 09:15
Modified
2024-12-09 18:25
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: SUNRPC: Fix null pointer dereference in svc_rqst_free() When alloc_pages_node() returns null in svc_rqst_alloc(), the null rq_scratch_page pointer will be dereferenced when calling put_page() in svc_rqst_free(). Fix it by adding a null check. Addresses-Coverity: ("Dereference after null check")
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C6FAA8A5-3F50-4B9F-9EEA-8430F59C03AB",
              "versionEndExcluding": "5.10.221",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "83B53E9A-F426-4C03-9A5F-A931FF79827E",
              "versionEndExcluding": "5.11.22",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0274929A-B36C-4F4C-AB22-30A0DD6B995B",
              "versionEndExcluding": "5.12.5",
              "versionStartIncluding": "5.12",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: Fix null pointer dereference in svc_rqst_free()\n\nWhen alloc_pages_node() returns null in svc_rqst_alloc(), the\nnull rq_scratch_page pointer will be dereferenced when calling\nput_page() in svc_rqst_free(). Fix it by adding a null check.\n\nAddresses-Coverity: (\"Dereference after null check\")"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: SUNRPC: corrige la desreferencia del puntero nulo en svc_rqst_free() Cuando alloc_pages_node() devuelve nulo en svc_rqst_alloc(), el puntero nulo rq_scratch_page ser\u00e1 desreferenciado al llamar a put_page() en svc_rqst_free(). Solucionarlo agregando una marca nula. Direcciones-Cobertura: (\"Desreferencia despu\u00e9s de verificaci\u00f3n nula\")"
    }
  ],
  "id": "CVE-2021-47002",
  "lastModified": "2024-12-09T18:25:24.200",
  "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": "2024-02-28T09:15:38.257",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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