CVE-2025-21826 (GCVE-0-2025-21826)
Vulnerability from cvelistv5
Published
2025-03-06 16:04
Modified
2025-05-04 13:06
Severity ?
VLAI Severity ?
EPSS score ?
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
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| ► | Linux | Linux |
Version: 2d4c0798a1ef8db15b3277697ac2def4eda42312 Version: 77be8c495a3f841e88b46508cc20d3d7d3289da3 Version: 9cb084df01e198119de477ac691d682fb01e80f3 Version: dc45bb00e66a33de1abb29e3d587880e1d4d9a7e Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58 Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58 Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58 Version: ff67e3e488090908dc015ba04d7407d8bd467f7e |
|
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "6b467c8feac759f4c5c86d708beca2aa2b29584f",
"status": "affected",
"version": "2d4c0798a1ef8db15b3277697ac2def4eda42312",
"versionType": "git"
},
{
"lessThan": "5083a7ae45003456c253e981b30a43f71230b4a3",
"status": "affected",
"version": "77be8c495a3f841e88b46508cc20d3d7d3289da3",
"versionType": "git"
},
{
"lessThan": "2ac254343d3cf228ae0738b2615fedf85d000752",
"status": "affected",
"version": "9cb084df01e198119de477ac691d682fb01e80f3",
"versionType": "git"
},
{
"lessThan": "82e491e085719068179ff6a5466b7387cc4bbf32",
"status": "affected",
"version": "dc45bb00e66a33de1abb29e3d587880e1d4d9a7e",
"versionType": "git"
},
{
"lessThan": "49b7182b97bafbd5645414aff054b4a65d05823d",
"status": "affected",
"version": "3ce67e3793f48c1b9635beb9bb71116ca1e51b58",
"versionType": "git"
},
{
"lessThan": "ab50d0eff4a939d20c37721fd9766347efcdb6f6",
"status": "affected",
"version": "3ce67e3793f48c1b9635beb9bb71116ca1e51b58",
"versionType": "git"
},
{
"lessThan": "1b9335a8000fb70742f7db10af314104b6ace220",
"status": "affected",
"version": "3ce67e3793f48c1b9635beb9bb71116ca1e51b58",
"versionType": "git"
},
{
"status": "affected",
"version": "ff67e3e488090908dc015ba04d7407d8bd467f7e",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"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",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.235",
"versionStartIncluding": "5.10.209",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.179",
"versionStartIncluding": "5.15.148",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.129",
"versionStartIncluding": "6.1.75",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.76",
"versionStartIncluding": "6.6.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.13",
"versionStartIncluding": "6.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.13.2",
"versionStartIncluding": "6.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.14",
"versionStartIncluding": "6.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.7.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T13:06:39.017Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/6b467c8feac759f4c5c86d708beca2aa2b29584f"
},
{
"url": "https://git.kernel.org/stable/c/5083a7ae45003456c253e981b30a43f71230b4a3"
},
{
"url": "https://git.kernel.org/stable/c/2ac254343d3cf228ae0738b2615fedf85d000752"
},
{
"url": "https://git.kernel.org/stable/c/82e491e085719068179ff6a5466b7387cc4bbf32"
},
{
"url": "https://git.kernel.org/stable/c/49b7182b97bafbd5645414aff054b4a65d05823d"
},
{
"url": "https://git.kernel.org/stable/c/ab50d0eff4a939d20c37721fd9766347efcdb6f6"
},
{
"url": "https://git.kernel.org/stable/c/1b9335a8000fb70742f7db10af314104b6ace220"
}
],
"title": "netfilter: nf_tables: reject mismatching sum of field_len with set key length",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-21826",
"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",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-21826\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-06T16:15:54.863\",\"lastModified\":\"2025-03-13T13:15:56.677\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_tables: rechaza la suma no coincidente de field_len con la longitud de la clave establecida La descripci\u00f3n de la longitud del campo proporciona la longitud de cada campo de clave separado en la concatenaci\u00f3n, cada campo se redondea a 32 bits para calcular el ancho de la regla pipapo desde pipapo_init(). La longitud de la clave establecida proporciona el tama\u00f1o total de la clave alineada a 32 bits. La aritm\u00e9tica basada en registros a\u00fan permite combinar la longitud de la clave establecida y la descripci\u00f3n de la longitud del campo no coincidentes, p. ej., la longitud de la clave establecida 10 y la descripci\u00f3n del campo [ 5, 4 ], lo que lleva a un ancho de pipapo de 12.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1b9335a8000fb70742f7db10af314104b6ace220\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2ac254343d3cf228ae0738b2615fedf85d000752\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/49b7182b97bafbd5645414aff054b4a65d05823d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5083a7ae45003456c253e981b30a43f71230b4a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6b467c8feac759f4c5c86d708beca2aa2b29584f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/82e491e085719068179ff6a5466b7387cc4bbf32\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ab50d0eff4a939d20c37721fd9766347efcdb6f6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
Loading…
Loading…
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.
Loading…
Loading…