fkie_cve-2024-26723
Vulnerability from fkie_nvd
Published
2024-04-03 15:15
Modified
2024-11-21 09:02
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
lan966x: Fix crash when adding interface under a lag
There is a crash when adding one of the lan966x interfaces under a lag
interface. The issue can be reproduced like this:
ip link add name bond0 type bond miimon 100 mode balance-xor
ip link set dev eth0 master bond0
The reason is because when adding a interface under the lag it would go
through all the ports and try to figure out which other ports are under
that lag interface. And the issue is that lan966x can have ports that are
NULL pointer as they are not probed. So then iterating over these ports
it would just crash as they are NULL pointers.
The fix consists in actually checking for NULL pointers before accessing
something from the ports. Like we do in other places.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlan966x: Fix crash when adding interface under a lag\n\nThere is a crash when adding one of the lan966x interfaces under a lag\ninterface. The issue can be reproduced like this:\nip link add name bond0 type bond miimon 100 mode balance-xor\nip link set dev eth0 master bond0\n\nThe reason is because when adding a interface under the lag it would go\nthrough all the ports and try to figure out which other ports are under\nthat lag interface. And the issue is that lan966x can have ports that are\nNULL pointer as they are not probed. So then iterating over these ports\nit would just crash as they are NULL pointers.\nThe fix consists in actually checking for NULL pointers before accessing\nsomething from the ports. Like we do in other places."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: lan966x: se solucion\u00f3 el bloqueo al agregar una interfaz con un retraso. Se produce un bloqueo al agregar una de las interfaces lan966x con un retraso. El problema se puede reproducir as\u00ed: enlace ip agregar nombre bond0 tipo bond miimon modo 100 balance-xor enlace ip establecer dev eth0 master bond0 La raz\u00f3n es que al agregar una interfaz bajo el retraso pasar\u00eda por todos los puertos e intentar\u00eda calcular determine qu\u00e9 otros puertos est\u00e1n bajo esa interfaz de retraso. Y el problema es que lan966x puede tener puertos que sean punteros NULL ya que no est\u00e1n sondeados. Entonces, al iterar sobre estos puertos, simplemente fallar\u00eda porque son punteros NULL. La soluci\u00f3n consiste en comprobar si hay punteros NULL antes de acceder a algo desde los puertos. Como hacemos en otros lugares."
}
],
"id": "CVE-2024-26723",
"lastModified": "2024-11-21T09:02:55.350",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2024-04-03T15:15:54.143",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/15faa1f67ab405d47789d4702f587ec7df7ef03e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2a492f01228b7d091dfe38974ef40dccf8f9f2f1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/48fae67d837488c87379f0c9f27df7391718477c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b9357489c46c7a43999964628db8b47d3a1f8672"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/15faa1f67ab405d47789d4702f587ec7df7ef03e"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/2a492f01228b7d091dfe38974ef40dccf8f9f2f1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/48fae67d837488c87379f0c9f27df7391718477c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/b9357489c46c7a43999964628db8b47d3a1f8672"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-400"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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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.
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- 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.