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nvd-json-data-feeds/CVE-2024/CVE-2024-502xx/CVE-2024-50269.json
cad-safe-bot f34b07204b Auto-Update: 2024-11-26T23:00:57.702464+00:00
2024-11-26 23:04:10 +00:00

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{
"id": "CVE-2024-50269",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-11-19T02:16:28.930",
"lastModified": "2024-11-26T22:30:27.420",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: musb: sunxi: Fix accessing an released usb phy\n\nCommit 6ed05c68cbca (\"usb: musb: sunxi: Explicitly release USB PHY on\nexit\") will cause that usb phy @glue->xceiv is accessed after released.\n\n1) register platform driver @sunxi_musb_driver\n// get the usb phy @glue->xceiv\nsunxi_musb_probe() -> devm_usb_get_phy().\n\n2) register and unregister platform driver @musb_driver\nmusb_probe() -> sunxi_musb_init()\nuse the phy here\n//the phy is released here\nmusb_remove() -> sunxi_musb_exit() -> devm_usb_put_phy()\n\n3) register @musb_driver again\nmusb_probe() -> sunxi_musb_init()\nuse the phy here but the phy has been released at 2).\n...\n\nFixed by reverting the commit, namely, removing devm_usb_put_phy()\nfrom sunxi_musb_exit()."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: musb: sunxi: Se solucion\u00f3 el acceso a un usb phy liberado. Commit 6ed05c68cbca (\"usb: musb: sunxi: Liberar expl\u00edcitamente USB PHY al salir\") provocar\u00e1 que se acceda al usb phy @glue->xceiv despu\u00e9s de su liberaci\u00f3n. 1) registrar el controlador de la plataforma @sunxi_musb_driver // obtener el usb phy @glue->xceiv sunxi_musb_probe() -> devm_usb_get_phy(). 2) registrar y anular el registro del controlador de la plataforma @musb_driver musb_probe() -> sunxi_musb_init() usa el phy aqu\u00ed //el phy se publica aqu\u00ed musb_remove() -> sunxi_musb_exit() -> devm_usb_put_phy() 3) registrar @musb_driver nuevamente musb_probe() -> sunxi_musb_init() usa el phy aqu\u00ed pero el phy se ha publicado en 2). ... Se solucion\u00f3 revirtiendo el commit, es decir, eliminando devm_usb_put_phy() de sunxi_musb_exit()."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
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