github - ghsa-rfj2-m755-7qfc

GHSA-RFJ2-M755-7QFC

Vulnerability from github – Published: 2025-03-27 18:31 – Updated: 2025-10-31 21:30

Details

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.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53033"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T17:15:53Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-rfj2-m755-7qfc",
  "modified": "2025-10-31T21:30:52Z",
  "published": "2025-03-27T18:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53033"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-53033 (GCVE-0-2023-53033)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:44 – Updated: 2025-05-04 07:48

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.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/550efeff989b041f3…
	https://git.kernel.org/stable/c/a8acfe2c6fb99f937…
	https://git.kernel.org/stable/c/76ef74d4a379faa45…
	https://git.kernel.org/stable/c/696e1a48b1a1b01ed…

Impacted products

Vendor

Product

Version

Linux

Affected: f6ae9f120dada00abfb47313364c35118469455f , < 550efeff989b041f3746118c0ddd863c39ddc1aa (git)
Affected: f6ae9f120dada00abfb47313364c35118469455f , < a8acfe2c6fb99f9375a9325807a179cd8c32e6e3 (git)
Affected: f6ae9f120dada00abfb47313364c35118469455f , < 76ef74d4a379faa451003621a84e3498044e7aa3 (git)
Affected: f6ae9f120dada00abfb47313364c35118469455f , < 696e1a48b1a1b01edad542a1ef293665864a4dd0 (git)

Linux

Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.10.164 , ≤ 5.10.* (semver)
Unaffected: 5.15.89 , ≤ 5.15.* (semver)
Unaffected: 6.1.7 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nft_payload.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "550efeff989b041f3746118c0ddd863c39ddc1aa",
              "status": "affected",
              "version": "f6ae9f120dada00abfb47313364c35118469455f",
              "versionType": "git"
            },
            {
              "lessThan": "a8acfe2c6fb99f9375a9325807a179cd8c32e6e3",
              "status": "affected",
              "version": "f6ae9f120dada00abfb47313364c35118469455f",
              "versionType": "git"
            },
            {
              "lessThan": "76ef74d4a379faa451003621a84e3498044e7aa3",
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            }
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          "product": "Linux",
          "programFiles": [
            "net/netfilter/nft_payload.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.164",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.89",
              "versionType": "semver"
            },
            {
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              "version": "6.1.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
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          "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."
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      ],
      "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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    "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"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-RFJ2-M755-7QFC

CVE-2023-53033 (GCVE-0-2023-53033)

Tags

Sightings

Nomenclature