CVE-2024-49997
Estado: ModificadaAlta (7.5)—
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: lantiq_etop: fix memory disclosure
When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer.
In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions.
Leer descripción completaMostrar menos
Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.06%
- Percentil entre todas las CVEs puntuadas: 64
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access70 % - Impacto principal
T1005Data from Local Systemcollection80 %
Vector AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). La vulnerabilidad expone datos de memoria en paquetes de red debido a padding sin zeroing (CWE-212), permitiendo lectura de información sensible (T1005).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-212
Referencias
- https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65
- https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36
- https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18
- https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e
- https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69
- https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db
- https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931
- https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad
- https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2024-49997",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-49997",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-10-22T13:30:28.688552Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "905f06a34f960676e7dc77bea00f2f8fe18177ad",
"versionType": "git"
},
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "60c068444c20bf9a3e22b65b5f6f3d9edc852931",
"versionType": "git"
},
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "185df159843d30fb71f821e7ea4368c2a3bfcd36",
"versionType": "git"
},
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "469856f76f4802c5d7e3d20e343185188de1e2db",
"versionType": "git"
},
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "2bf4c101d7c99483b8b15a0c8f881e3f399f7e18",
"versionType": "git"
},
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "e66e38d07b31e177ca430758ed97fbc79f27d966",
"versionType": "git"
},
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "1097bf16501ed5e35358d848b0a94ad2830b0f65",
"versionType": "git"
},
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "431b122933b197820d319eb3987a67d04346ce9e",
"versionType": "git"
},
{
"status": "affected",
"version": "504d4721ee8e432af4b5f196a08af38bc4dac5fe",
"lessThan": "45c0de18ff2dc9af01236380404bbd6a46502c69",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/lantiq_etop.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.323",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.285",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.227",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.168",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.113",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.55",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.10.14",
"versionType": "semver",
"lessThanOrEqual": "6.10.*"
},
{
"status": "unaffected",
"version": "6.11.3",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/lantiq_etop.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "RUGGEDCOM RST2428P",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V3.2",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V3.2",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V3.2",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.0",
"lessThan": "V3.1.5",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.0",
"lessThan": "V3.1.5",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.0",
"lessThan": "V3.1.5",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.0",
"lessThan": "V3.1.5",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.0",
"lessThan": "V3.1.5",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2024-10-21T18:15:19.837",
"references": [
{
"url": "https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-212"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: lantiq_etop: fix memory disclosure\n\nWhen applying padding, the buffer is not zeroed, which results in memory\ndisclosure. The mentioned data is observed on the wire. This patch uses\nskb_put_padto() to pad Ethernet frames properly. The mentioned function\nzeroes the expanded buffer.\n\nIn case the packet cannot be padded it is silently dropped. Statistics\nare also not incremented. This driver does not support statistics in the\nold 32-bit format or the new 64-bit format. These will be added in the\nfuture. In its current form, the patch should be easily backported to\nstable versions.\n\nEthernet MACs on Amazon-SE and Danube cannot do padding of the packets\nin hardware, so software padding must be applied."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ethernet: lantiq_etop: fix memory breach Al aplicar relleno, el búfer no se pone a cero, lo que da como resultado la divulgación de memoria. Los datos mencionados se observan en el cable. Este parche usa skb_put_padto() para rellenar los marcos Ethernet correctamente. La función mencionada pone a cero el búfer expandido. En caso de que el paquete no se pueda rellenar, se descarta silenciosamente. Las estadísticas tampoco se incrementan. Este controlador no admite estadísticas en el antiguo formato de 32 bits ni en el nuevo formato de 64 bits. Estos se agregarán en el futuro. En su forma actual, el parche debería poder retroportarse fácilmente a versiones estables. Las MAC de Ethernet en Amazon-SE y Danube no pueden realizar relleno de los paquetes en hardware, por lo que se debe aplicar relleno de software."
}
],
"lastModified": "2026-06-17T08:00:54.307",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2DA9563A-F5E7-48BB-AE3C-4A591C574A45",
"versionEndExcluding": "5.10.227",
"versionStartIncluding": "3.0"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4D51C05D-455B-4D8D-89E7-A58E140B864C",
"versionEndExcluding": "5.15.168",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D01BD22E-ACD1-4618-9D01-6116570BE1EE",
"versionEndExcluding": "6.1.113",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E90B9576-56C4-47BC-AAB0-C5B2D438F5D0",
"versionEndExcluding": "6.6.55",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4C16BCE0-FFA0-4599-BE0A-1FD65101C021",
"versionEndExcluding": "6.10.14",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9",
"versionEndExcluding": "6.11.3",
"versionStartIncluding": "6.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}