FKIE_CVE-2025-40331

Vulnerability from fkie_nvd - Published: 2025-12-09 16:17 - Updated: 2026-06-17 09:21
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: sctp: Prevent TOCTOU out-of-bounds write For the following path not holding the sock lock, sctp_diag_dump() -> sctp_for_each_endpoint() -> sctp_ep_dump() make sure not to exceed bounds in case the address list has grown between buffer allocation (time-of-check) and write (time-of-use).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fe08fcaacb7eb019fa9c81db39b2214de216677
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3006959371007fc2eae4a078f823c680fa52de1a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/584307275b2048991b2e8984962189b6cc0a9b85
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/72e3fea68eac8d088e44c3dd954e843478e9240e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89eac1e150dbd42963e13d23828cb8c4e0763196
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/95aef86ab231f047bb8085c70666059b58f53c09
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b106a68df0650b694b254427cd9250c04500edd3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9119f243d9c0da3c3b5f577a328de3e7ffd1b42
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sctp/diag.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b106a68df0650b694b254427cd9250c04500edd3",
              "status": "affected",
              "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
              "versionType": "git"
            },
            {
              "lessThan": "3006959371007fc2eae4a078f823c680fa52de1a",
              "status": "affected",
              "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
              "versionType": "git"
            },
            {
              "lessThan": "72e3fea68eac8d088e44c3dd954e843478e9240e",
              "status": "affected",
              "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
              "versionType": "git"
            },
            {
              "lessThan": "584307275b2048991b2e8984962189b6cc0a9b85",
              "status": "affected",
              "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
              "versionType": "git"
            },
            {
              "lessThan": "c9119f243d9c0da3c3b5f577a328de3e7ffd1b42",
              "status": "affected",
              "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
              "versionType": "git"
            },
            {
              "lessThan": "2fe08fcaacb7eb019fa9c81db39b2214de216677",
              "status": "affected",
              "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
              "versionType": "git"
            },
            {
              "lessThan": "89eac1e150dbd42963e13d23828cb8c4e0763196",
              "status": "affected",
              "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
              "versionType": "git"
            },
            {
              "lessThan": "95aef86ab231f047bb8085c70666059b58f53c09",
              "status": "affected",
              "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/sctp/diag.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.7"
            },
            {
              "lessThan": "4.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.117",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.58",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: Prevent TOCTOU out-of-bounds write\n\nFor the following path not holding the sock lock,\n\n  sctp_diag_dump() -\u003e sctp_for_each_endpoint() -\u003e sctp_ep_dump()\n\nmake sure not to exceed bounds in case the address list has grown\nbetween buffer allocation (time-of-check) and write (time-of-use)."
    }
  ],
  "id": "CVE-2025-40331",
  "lastModified": "2026-06-17T09:21:40.290",
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-40331",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-16T19:58:03.978750Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-09T16:17:43.247",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fe08fcaacb7eb019fa9c81db39b2214de216677"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3006959371007fc2eae4a078f823c680fa52de1a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/584307275b2048991b2e8984962189b6cc0a9b85"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/72e3fea68eac8d088e44c3dd954e843478e9240e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/89eac1e150dbd42963e13d23828cb8c4e0763196"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/95aef86ab231f047bb8085c70666059b58f53c09"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b106a68df0650b694b254427cd9250c04500edd3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9119f243d9c0da3c3b5f577a328de3e7ffd1b42"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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