github - ghsa-8376-779w-5hcf

ghsa-8376-779w-5hcf

Vulnerability from github

Published

2025-03-06 18:31

Modified

2025-03-13 15:32

Details

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: reject mismatching sum of field_len with set key length

The field length description provides the length of each separated key field in the concatenation, each field gets rounded up to 32-bits to calculate the pipapo rule width from pipapo_init(). The set key length provides the total size of the key aligned to 32-bits.

Register-based arithmetics still allows for combining mismatching set key length and field length description, eg. set key length 10 and field description [ 5, 4 ] leading to pipapo width of 12.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21826"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-06T16:15:54Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: reject mismatching sum of field_len with set key length\n\nThe field length description provides the length of each separated key\nfield in the concatenation, each field gets rounded up to 32-bits to\ncalculate the pipapo rule width from pipapo_init(). The set key length\nprovides the total size of the key aligned to 32-bits.\n\nRegister-based arithmetics still allows for combining mismatching set\nkey length and field length description, eg. set key length 10 and field\ndescription [ 5, 4 ] leading to pipapo width of 12.",
  "id": "GHSA-8376-779w-5hcf",
  "modified": "2025-03-13T15:32:54Z",
  "published": "2025-03-06T18:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21826"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b9335a8000fb70742f7db10af314104b6ace220"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ac254343d3cf228ae0738b2615fedf85d000752"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49b7182b97bafbd5645414aff054b4a65d05823d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5083a7ae45003456c253e981b30a43f71230b4a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6b467c8feac759f4c5c86d708beca2aa2b29584f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82e491e085719068179ff6a5466b7387cc4bbf32"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab50d0eff4a939d20c37721fd9766347efcdb6f6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-21826 (GCVE-0-2025-21826)

Vulnerability from cvelistv5

Published

2025-03-06 16:04

Modified

2025-05-04 13:06

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of field_len with set key length The field length description provides the length of each separated key field in the concatenation, each field gets rounded up to 32-bits to calculate the pipapo rule width from pipapo_init(). The set key length provides the total size of the key aligned to 32-bits. Register-based arithmetics still allows for combining mismatching set key length and field length description, eg. set key length 10 and field description [ 5, 4 ] leading to pipapo width of 12.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/6b467c8feac759f4c5c86d708beca2aa2b29584f
	https://git.kernel.org/stable/c/5083a7ae45003456c253e981b30a43f71230b4a3
	https://git.kernel.org/stable/c/2ac254343d3cf228ae0738b2615fedf85d000752
	https://git.kernel.org/stable/c/82e491e085719068179ff6a5466b7387cc4bbf32
	https://git.kernel.org/stable/c/49b7182b97bafbd5645414aff054b4a65d05823d
	https://git.kernel.org/stable/c/ab50d0eff4a939d20c37721fd9766347efcdb6f6
	https://git.kernel.org/stable/c/1b9335a8000fb70742f7db10af314104b6ace220

Impacted products

Vendor

Product

Version

▼

Linux

Version: 2d4c0798a1ef8db15b3277697ac2def4eda42312
Version: 77be8c495a3f841e88b46508cc20d3d7d3289da3
Version: 9cb084df01e198119de477ac691d682fb01e80f3
Version: dc45bb00e66a33de1abb29e3d587880e1d4d9a7e
Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58
Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58
Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58
Version: ff67e3e488090908dc015ba04d7407d8bd467f7e

Linux

Version: 6.8

Show details on NVD website

JSON

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{
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        {
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.235",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.179",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.129",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.76",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.2",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
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          ]
        }
      ],
      "cpeApplicability": [
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T13:06:39.017Z",
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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/49b7182b97bafbd5645414aff054b4a65d05823d"
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        {
          "url": "https://git.kernel.org/stable/c/1b9335a8000fb70742f7db10af314104b6ace220"
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      "title": "netfilter: nf_tables: reject mismatching sum of field_len with set key length",
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    "datePublished": "2025-03-06T16:04:32.274Z",
    "dateReserved": "2024-12-29T08:45:45.775Z",
    "dateUpdated": "2025-05-04T13:06:39.017Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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