CVE-2023-53033 (GCVE-0-2023-53033)
Vulnerability from cvelistv5
Published
2025-03-27 16:44
Modified
2025-05-04 07:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits If the offset + length goes over the ethernet + vlan header, then the length is adjusted to copy the bytes that are within the boundaries of the vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet + vlan header are copied directly from the skbuff data area. Fix incorrect arithmetic operator: subtract, not add, the size of the vlan header in case of double-tagged packets to adjust the length accordingly to address CVE-2023-0179.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3
Impacted products
Vendor Product Version
Linux Linux Version: f6ae9f120dada00abfb47313364c35118469455f
Version: f6ae9f120dada00abfb47313364c35118469455f
Version: f6ae9f120dada00abfb47313364c35118469455f
Version: f6ae9f120dada00abfb47313364c35118469455f
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   Linux Linux Version: 5.5
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nft_payload.c"
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          "vendor": "Linux",
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits\n\nIf the offset + length goes over the ethernet + vlan header, then the\nlength is adjusted to copy the bytes that are within the boundaries of\nthe vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet +\nvlan header are copied directly from the skbuff data area.\n\nFix incorrect arithmetic operator: subtract, not add, the size of the\nvlan header in case of double-tagged packets to adjust the length\naccordingly to address CVE-2023-0179."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:48:09.319Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0"
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      "title": "netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits",
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  },
  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53033",
    "datePublished": "2025-03-27T16:44:01.044Z",
    "dateReserved": "2025-03-27T16:40:15.758Z",
    "dateUpdated": "2025-05-04T07:48:09.319Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53033\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-27T17:15:53.120\",\"lastModified\":\"2025-03-28T18:11:40.180\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits\\n\\nIf the offset + length goes over the ethernet + vlan header, then the\\nlength is adjusted to copy the bytes that are within the boundaries of\\nthe vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet +\\nvlan header are copied directly from the skbuff data area.\\n\\nFix incorrect arithmetic operator: subtract, not add, the size of the\\nvlan header in case of double-tagged packets to adjust the length\\naccordingly to address CVE-2023-0179.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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