2025-03-10 23:03:48 +00:00

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{
"id": "CVE-2022-49582",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-02-26T07:01:33.807",
"lastModified": "2025-03-10T21:11:23.753",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: fix NULL pointer dereference in dsa_port_reset_vlan_filtering\n\nThe \"ds\" iterator variable used in dsa_port_reset_vlan_filtering() ->\ndsa_switch_for_each_port() overwrites the \"dp\" received as argument,\nwhich is later used to call dsa_port_vlan_filtering() proper.\n\nAs a result, switches which do enter that code path (the ones with\nvlan_filtering_is_global=true) will dereference an invalid dp in\ndsa_port_reset_vlan_filtering() after leaving a VLAN-aware bridge.\n\nUse a dedicated \"other_dp\" iterator variable to avoid this from\nhappening."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: dsa: fix NULL pointer dereference in dsa_port_reset_vlan_filtering La variable de iterador \"ds\" utilizada en dsa_port_reset_vlan_filtering() -> dsa_switch_for_each_port() sobrescribe el \"dp\" recibido como argumento, que luego se utiliza para llamar a dsa_port_vlan_filtering() correctamente. Como resultado, los conmutadores que ingresan a esa ruta de c\u00f3digo (los que tienen vlan_filtering_is_global=true) desreferenciar\u00e1n un dp no v\u00e1lido en dsa_port_reset_vlan_filtering() despu\u00e9s de abandonar un puente con reconocimiento de VLAN. Utilice una variable de iterador \"other_dp\" dedicada para evitar que esto suceda."
}
],
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"source": "nvd@nist.gov",
"type": "Primary",
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"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
]
},
"weaknesses": [
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"source": "nvd@nist.gov",
"type": "Primary",
"description": [
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"lang": "en",
"value": "CWE-476"
}
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