gsd-2021-47213
Vulnerability from gsd
Modified
2024-04-11 05:05
Details
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix exposure in nfsd4_decode_bitmap() rtm@csail.mit.edu reports: > nfsd4_decode_bitmap4() will write beyond bmval[bmlen-1] if the RPC > directs it to do so. This can cause nfsd4_decode_state_protect4_a() > to write client-supplied data beyond the end of > nfsd4_exchange_id.spo_must_allow[] when called by > nfsd4_decode_exchange_id(). Rewrite the loops so nfsd4_decode_bitmap() cannot iterate beyond @bmlen. Reported by: rtm@csail.mit.edu
Aliases



{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-47213"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Fix exposure in nfsd4_decode_bitmap()\n\nrtm@csail.mit.edu reports:\n\u003e nfsd4_decode_bitmap4() will write beyond bmval[bmlen-1] if the RPC\n\u003e directs it to do so. This can cause nfsd4_decode_state_protect4_a()\n\u003e to write client-supplied data beyond the end of\n\u003e nfsd4_exchange_id.spo_must_allow[] when called by\n\u003e nfsd4_decode_exchange_id().\n\nRewrite the loops so nfsd4_decode_bitmap() cannot iterate beyond\n@bmlen.\n\nReported by: rtm@csail.mit.edu",
      "id": "GSD-2021-47213",
      "modified": "2024-04-11T05:05:09.655542Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2021-47213",
        "STATE": "REJECT"
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "** REJECT ** This CVE ID has been rejected or withdrawn by its CVE Numbering Authority."
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority."
          }
        ],
        "id": "CVE-2021-47213",
        "lastModified": "2024-04-15T09:15:07.570",
        "metrics": {},
        "published": "2024-04-10T19:15:48.640",
        "references": [],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Rejected"
      }
    }
  }
}


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