FKIE_CVE-2024-40993
Vulnerability from fkie_nvd - Published: 2024-07-12 13:15 - Updated: 2026-06-17 07:47
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ipset: Fix suspicious rcu_dereference_protected()
When destroying all sets, we are either in pernet exit phase or
are executing a "destroy all sets command" from userspace. The latter
was taken into account in ip_set_dereference() (nfnetlink mutex is held),
but the former was not. The patch adds the required check to
rcu_dereference_protected() in ip_set_dereference().
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | 6.1.95 | |
| linux | linux_kernel | 6.6.35 | |
| linux | linux_kernel | 6.9.6 | |
| linux | linux_kernel | 6.10 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/ipset/ip_set_core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "3799d02ae4208af08e81310770d8754863a246a1",
"status": "affected",
"version": "c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3",
"versionType": "git"
},
{
"lessThan": "72d9611968867cc4c5509e7708b1507d692b797a",
"status": "affected",
"version": "93b53c202b51a69e42ca57f5a183f7e008e19f83",
"versionType": "git"
},
{
"lessThan": "523bed6489e089dd8040e72453fb79da47b144c2",
"status": "affected",
"version": "0f1bb77c6d837c9513943bc7c08f04c5cc5c6568",
"versionType": "git"
},
{
"lessThan": "788d585e62f487bc4536d454937f737b70d39a33",
"status": "affected",
"version": "390b353d1a1da3e9c6c0fd14fe650d69063c95d6",
"versionType": "git"
},
{
"lessThan": "94dd411c18d7fff9e411555d5c662d29416501e4",
"status": "affected",
"version": "2ba35b37f780c6410bb4bba9c3072596d8576702",
"versionType": "git"
},
{
"lessThan": "3fc09e1ca854bc234e007a56e0f7431f5e2defb5",
"status": "affected",
"version": "90ae20d47de602198eb69e6cd7a3db3420abfc08",
"versionType": "git"
},
{
"lessThan": "8ecd06277a7664f4ef018abae3abd3451d64e7a6",
"status": "affected",
"version": "4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/ipset/ip_set_core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "6.1.96",
"status": "affected",
"version": "6.1.95",
"versionType": "semver"
},
{
"lessThan": "6.6.36",
"status": "affected",
"version": "6.6.35",
"versionType": "semver"
},
{
"lessThan": "6.9.7",
"status": "affected",
"version": "6.9.6",
"versionType": "semver"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1.95:*:*:*:*:*:*:*",
"matchCriteriaId": "C8C0F47F-CC5A-4962-A13F-F2632DEBE9D0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.6.35:*:*:*:*:*:*:*",
"matchCriteriaId": "24BA51FC-6014-49BB-A4E3-0C0211421E38",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9.6:*:*:*:*:*:*:*",
"matchCriteriaId": "BA2678D2-361E-4A41-AD4D-DBFA70AD14D4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*",
"matchCriteriaId": "79F18AFA-40F7-43F0-BA30-7BDB65F918B9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: Fix suspicious rcu_dereference_protected()\n\nWhen destroying all sets, we are either in pernet exit phase or\nare executing a \"destroy all sets command\" from userspace. The latter\nwas taken into account in ip_set_dereference() (nfnetlink mutex is held),\nbut the former was not. The patch adds the required check to\nrcu_dereference_protected() in ip_set_dereference()."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: ipset: corrige rcu_dereference_protected() sospechoso Al destruir todos los conjuntos, estamos en la fase de salida de pernet o estamos ejecutando un \"comando de destruir todos los conjuntos\" desde el espacio de usuario. Este \u00faltimo se tuvo en cuenta en ip_set_dereference() (se mantiene el mutex de nfnetlink), pero el primero no. El parche agrega la verificaci\u00f3n requerida a rcu_dereference_protected() en ip_set_dereference()."
}
],
"id": "CVE-2024-40993",
"lastModified": "2026-06-17T07:47:02.370",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-40993",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T17:01:41.687653Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-07-12T13:15:20.553",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3799d02ae4208af08e81310770d8754863a246a1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3fc09e1ca854bc234e007a56e0f7431f5e2defb5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/523bed6489e089dd8040e72453fb79da47b144c2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/72d9611968867cc4c5509e7708b1507d692b797a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/788d585e62f487bc4536d454937f737b70d39a33"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/8ecd06277a7664f4ef018abae3abd3451d64e7a6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/94dd411c18d7fff9e411555d5c662d29416501e4"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3799d02ae4208af08e81310770d8754863a246a1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3fc09e1ca854bc234e007a56e0f7431f5e2defb5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/523bed6489e089dd8040e72453fb79da47b144c2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/72d9611968867cc4c5509e7708b1507d692b797a"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/788d585e62f487bc4536d454937f737b70d39a33"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/8ecd06277a7664f4ef018abae3abd3451d64e7a6"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/94dd411c18d7fff9e411555d5c662d29416501e4"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
| Author | Source | Type | Date | Other |
|---|
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.
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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