CVE-2023-53372 (GCVE-0-2023-53372)
Vulnerability from cvelistv5
Published
2025-09-18 13:33
Modified
2025-09-18 13:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: sctp: fix a potential overflow in sctp_ifwdtsn_skip Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only checks the pos against the end of the chunk. However, the data left for the last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference it as struct sctp_ifwdtsn_skip may cause coverflow. This patch fixes it by checking the pos against "the end of the chunk - sizeof(struct sctp_ifwdtsn_skip)" in sctp_ifwdtsn_skip, similar to sctp_fwdtsn_skip.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0fc2ea922c8ad5520c80f03facbf396c81dce802
Version: 0fc2ea922c8ad5520c80f03facbf396c81dce802
Version: 0fc2ea922c8ad5520c80f03facbf396c81dce802
Version: 0fc2ea922c8ad5520c80f03facbf396c81dce802
Version: 0fc2ea922c8ad5520c80f03facbf396c81dce802
Version: 0fc2ea922c8ad5520c80f03facbf396c81dce802
Version: 0fc2ea922c8ad5520c80f03facbf396c81dce802
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{
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          "programFiles": [
            "net/sctp/stream_interleave.c"
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      "cpeApplicability": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: fix a potential overflow in sctp_ifwdtsn_skip\n\nCurrently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only\nchecks the pos against the end of the chunk. However, the data left for\nthe last pos may be \u003c sizeof(struct sctp_ifwdtsn_skip), and dereference\nit as struct sctp_ifwdtsn_skip may cause coverflow.\n\nThis patch fixes it by checking the pos against \"the end of the chunk -\nsizeof(struct sctp_ifwdtsn_skip)\" in sctp_ifwdtsn_skip, similar to\nsctp_fwdtsn_skip."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T13:33:19.549Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4"
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        {
          "url": "https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53372",
    "datePublished": "2025-09-18T13:33:19.549Z",
    "dateReserved": "2025-09-17T14:54:09.734Z",
    "dateUpdated": "2025-09-18T13:33:19.549Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53372\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-18T14:15:39.750\",\"lastModified\":\"2025-09-19T16:00:27.847\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsctp: fix a potential overflow in sctp_ifwdtsn_skip\\n\\nCurrently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only\\nchecks the pos against the end of the chunk. However, the data left for\\nthe last pos may be \u003c sizeof(struct sctp_ifwdtsn_skip), and dereference\\nit as struct sctp_ifwdtsn_skip may cause coverflow.\\n\\nThis patch fixes it by checking the pos against \\\"the end of the chunk -\\nsizeof(struct sctp_ifwdtsn_skip)\\\" in sctp_ifwdtsn_skip, similar to\\nsctp_fwdtsn_skip.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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