Vulnerability-Lookup

FKIE_CVE-2024-40929

Vulnerability from fkie_nvd - Published: 2024-07-12 13:15 - Updated: 2026-08-04 11:19

Severity

7.1 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: check n_ssids before accessing the ssids In some versions of cfg80211, the ssids poinet might be a valid one even though n_ssids is 0. Accessing the pointer in this case will cuase an out-of-bound access. Fix this by checking n_ssids first.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/29a18d56bd64b95bd10bda4afda512558471382a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3c4771091ea8016c8601399078916f722dd8833b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/60d62757df30b74bf397a2847a6db7385c6ee281	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/62e007bdeb91c6879a4652c3426aef1cd9d2937b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9e719ae3abad60e245ce248ba3f08148f375a614	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f777792952d03bbaf8329fdfa99393a5a33e2640	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/29a18d56bd64b95bd10bda4afda512558471382a	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/3c4771091ea8016c8601399078916f722dd8833b	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/60d62757df30b74bf397a2847a6db7385c6ee281	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/62e007bdeb91c6879a4652c3426aef1cd9d2937b	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/9e719ae3abad60e245ce248ba3f08148f375a614	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/f777792952d03bbaf8329fdfa99393a5a33e2640	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.10
linux	linux_kernel	6.10

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/intel/iwlwifi/mvm/scan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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            {
              "lessThan": "3c4771091ea8016c8601399078916f722dd8833b",
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              "status": "affected",
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          ],
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          "vendor": "Linux",
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              "version": "4.17"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.162",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.95",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
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  "configurations": [
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              "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: check n_ssids before accessing the ssids\n\nIn some versions of cfg80211, the ssids poinet might be a valid one even\nthough n_ssids is 0. Accessing the pointer in this case will cuase an\nout-of-bound access. Fix this by checking n_ssids first."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: iwlwifi: mvm: verifique n_ssids antes de acceder a los ssids en algunas versiones de cfg80211, el punto ssids puede ser v\u00e1lido aunque n_ssids sea 0. Accediendo al puntero en este caso provocar\u00e1 un acceso fuera de los l\u00edmites. Solucione este problema comprobando primero n_ssids."
    }
  ],
  "id": "CVE-2024-40929",
  "lastModified": "2026-08-04T11:19:06.587",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.2,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T17:05:05.324309Z",
          "version": "2.0.3"
        }
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    ]
  },
  "published": "2024-07-12T13:15:15.610",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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    },
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    },
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2024-40929 (GCVE-0-2024-40929)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:25 – Updated: 2026-08-05 11:34

Title

wifi: iwlwifi: mvm: check n_ssids before accessing the ssids

Summary

Severity

7.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 17:05 UTC

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/3c4771091ea8016c8…
https://git.kernel.org/stable/c/f777792952d03bbaf…
https://git.kernel.org/stable/c/9e719ae3abad60e24…
https://git.kernel.org/stable/c/29a18d56bd64b95bd…
https://git.kernel.org/stable/c/62e007bdeb91c6879…
https://git.kernel.org/stable/c/60d62757df30b74bf…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c1a7515393e403758a684fd0a2372af466675b15 , < 3c4771091ea8016c8601399078916f722dd8833b (git) Affected: c1a7515393e403758a684fd0a2372af466675b15 , < f777792952d03bbaf8329fdfa99393a5a33e2640 (git) Affected: c1a7515393e403758a684fd0a2372af466675b15 , < 9e719ae3abad60e245ce248ba3f08148f375a614 (git) Affected: c1a7515393e403758a684fd0a2372af466675b15 , < 29a18d56bd64b95bd10bda4afda512558471382a (git) Affected: c1a7515393e403758a684fd0a2372af466675b15 , < 62e007bdeb91c6879a4652c3426aef1cd9d2937b (git) Affected: c1a7515393e403758a684fd0a2372af466675b15 , < 60d62757df30b74bf397a2847a6db7385c6ee281 (git)
Linux	Linux	Affected: 4.17 Unaffected: 0 , < 4.17 (semver) Unaffected: 5.10.221 , ≤ 5.10.* (semver) Unaffected: 5.15.162 , ≤ 5.15.* (semver) Unaffected: 6.1.95 , ≤ 6.1.* (semver) Unaffected: 6.6.35 , ≤ 6.6.* (semver) Unaffected: 6.9.6 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T21:57:56.614Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-40929",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                  },
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                  }
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        "providerMetadata": {
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    "cna": {
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          "programFiles": [
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            "drivers/net/wireless/intel/iwlwifi/mvm/scan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.17"
            },
            {
              "lessThan": "4.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.162",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.95",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.221",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.162",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.95",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.35",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9.6",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: check n_ssids before accessing the ssids\n\nIn some versions of cfg80211, the ssids poinet might be a valid one even\nthough n_ssids is 0. Accessing the pointer in this case will cuase an\nout-of-bound access. Fix this by checking n_ssids first."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable branch is only reached through cfg80211\u0027s split 6 GHz scan, whose request layout and channel count are built from co-located-AP (RNR) information carried in beacons/probe responses received over the air, so an attacker within WiFi radio range shapes the allocation that is read out of bounds. Per WiFi-frame guidance this is Adjacent rather than Local.\nAC:L - The attacker can beacon crafted RNR elements continuously and vary the advertised co-located-AP count to sweep allocation layouts, while 6 GHz-capable iwlwifi clients perform passive scans routinely, so the condition can be retried until it hits.\nPR:N - An adjacent attacker needs no account or credentials on the target; the passive 6 GHz scan that walks the buggy code is initiated automatically by the system\u0027s normal background scanning rather than by any attacker-held privilege.\nUI:N - Periodic passive scanning by NetworkManager/wpa_supplicant drives the vulnerable path with no action from the logged-in user.\nS:U - The out-of-bounds read stays inside the kernel\u0027s own memory and security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:L - The read is a single byte at a fixed offset 32 past the ssids pointer and is never copied to userspace or the air; it only selects between two hard-coded dwell budgets (100 vs 300 TU), which yields at most a timing-observable one-bit oracle on adjacent kernel heap memory.\nI:N - Nothing is written out of bounds \u2014 the only side effect is that one of two legitimate constant values is placed in the firmware scan command\u0027s adwell_max_budget field.\nA:H - The access reads up to 33 bytes past the end of a kzalloc\u0027d scan request; on KASAN or hardened kernels this is a slab-out-of-bounds report that panics under panic_on_warn/kasan.fault=panic, and a page-order allocation ending on a page boundary can fault and oops."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:34:05.245Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3c4771091ea8016c8601399078916f722dd8833b"
        },
        {
          "url": "https://git.kernel.org/stable/c/f777792952d03bbaf8329fdfa99393a5a33e2640"
        },
        {
          "url": "https://git.kernel.org/stable/c/9e719ae3abad60e245ce248ba3f08148f375a614"
        },
        {
          "url": "https://git.kernel.org/stable/c/29a18d56bd64b95bd10bda4afda512558471382a"
        },
        {
          "url": "https://git.kernel.org/stable/c/62e007bdeb91c6879a4652c3426aef1cd9d2937b"
        },
        {
          "url": "https://git.kernel.org/stable/c/60d62757df30b74bf397a2847a6db7385c6ee281"
        }
      ],
      "title": "wifi: iwlwifi: mvm: check n_ssids before accessing the ssids",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-40929",
    "datePublished": "2024-07-12T12:25:08.434Z",
    "dateReserved": "2024-07-12T12:17:45.583Z",
    "dateUpdated": "2026-08-05T11:34:05.245Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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FKIE_CVE-2024-40929

CVE-2024-40929 (GCVE-0-2024-40929)

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Sightings

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