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nvd-json-data-feeds/CVE-2024/CVE-2024-270xx/CVE-2024-27043.json
cad-safe-bot f21df03568 Auto-Update: 2024-12-23T21:00:20.486239+00:00
2024-12-23 21:03:43 +00:00

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{
"id": "CVE-2024-27043",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-05-01T13:15:49.740",
"lastModified": "2024-12-23T19:13:31.163",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: edia: dvbdev: fix a use-after-free\n\nIn dvb_register_device, *pdvbdev is set equal to dvbdev, which is freed\nin several error-handling paths. However, *pdvbdev is not set to NULL\nafter dvbdev's deallocation, causing use-after-frees in many places,\nfor example, in the following call chain:\n\nbudget_register\n |-> dvb_dmxdev_init\n |-> dvb_register_device\n |-> dvb_dmxdev_release\n |-> dvb_unregister_device\n |-> dvb_remove_device\n |-> dvb_device_put\n |-> kref_put\n\nWhen calling dvb_unregister_device, dmxdev->dvbdev (i.e. *pdvbdev in\ndvb_register_device) could point to memory that had been freed in\ndvb_register_device. Thereafter, this pointer is transferred to\nkref_put and triggering a use-after-free."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: medios: edia: dvbdev: corregir un use-after-free En dvb_register_device, *pdvbdev se establece igual a dvbdev, que se libera en varias rutas de manejo de errores. Sin embargo, *pdvbdev no se establece en NULL despu\u00e9s de la desasignaci\u00f3n de dvbdev, lo que provoca use-after-free en muchos lugares, por ejemplo, en la siguiente cadena de llamadas: Budget_register |-> dvb_dmxdev_init |-> dvb_register_device |-> dvb_dmxdev_release |-> dvb_unregister_device | -> dvb_remove_device |-> dvb_device_put |-> kref_put Al llamar a dvb_unregister_device, dmxdev->dvbdev (es decir, *pdvbdev en dvb_register_device) podr\u00eda apuntar a la memoria que se hab\u00eda liberado en dvb_register_device. A partir de entonces, este puntero se transfiere a kref_put y se activa un use-after-free."
}
],
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"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
}
]
},
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{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
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