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nvd-json-data-feeds/CVE-2022/CVE-2022-489xx/CVE-2022-48994.json
cad-safe-bot e6cbafdc40 Auto-Update: 2024-12-08T03:00:18.988682+00:00
2024-12-08 03:06:42 +00:00

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{
"id": "CVE-2022-48994",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-10-21T20:15:11.257",
"lastModified": "2024-11-07T13:52:43.380",
"vulnStatus": "Analyzed",
"cveTags": [],
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event\n\nWith clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG),\nindirect call targets are validated against the expected function\npointer prototype to make sure the call target is valid to help mitigate\nROP attacks. If they are not identical, there is a failure at run time,\nwhich manifests as either a kernel panic or thread getting killed.\n\nseq_copy_in_user() and seq_copy_in_kernel() did not have prototypes\nmatching snd_seq_dump_func_t. Adjust this and remove the casts. There\nare not resulting binary output differences.\n\nThis was found as a result of Clang's new -Wcast-function-type-strict\nflag, which is more sensitive than the simpler -Wcast-function-type,\nwhich only checks for type width mismatches."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: seq: Fix function prototipo desajuste en snd_seq_expand_var_event Con la integridad del flujo de control del kernel de clang (kCFI, CONFIG_CFI_CLANG), los objetivos de llamada indirecta se validan contra el prototipo de puntero de funci\u00f3n esperado para asegurarse de que el objetivo de llamada sea v\u00e1lido para ayudar a mitigar los ataques ROP. Si no son id\u00e9nticos, hay un error en el tiempo de ejecuci\u00f3n, que se manifiesta como un p\u00e1nico del kernel o la muerte del hilo. seq_copy_in_user() y seq_copy_in_kernel() no ten\u00edan prototipos que coincidieran con snd_seq_dump_func_t. Aj\u00fastelo y elimine las conversiones. No hay diferencias de salida binaria resultantes. Esto se encontr\u00f3 como resultado del nuevo indicador -Wcast-function-type-strict de Clang, que es m\u00e1s sensible que el m\u00e1s simple -Wcast-function-type, que solo verifica los desajustes de ancho de tipo."
}
],
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"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
}
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},
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