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CVE-2022-49451

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

firmware: arm_scmi: Fix list protocols enumeration in the base protocol

While enumerating protocols implemented by the SCMI platform using BASE_DISCOVER_LIST_PROTOCOLS, the number of returned protocols is currently validated in an improper way since the check employs a sum between unsigned integers that could overflow and cause the check itself to be silently bypassed if the returned value 'loop_num_ret' is big enough.

Fix the validation avoiding the addition.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix list protocols enumeration in the base protocol\n\nWhile enumerating protocols implemented by the SCMI platform using\nBASE_DISCOVER_LIST_PROTOCOLS, the number of returned protocols is\ncurrently validated in an improper way since the check employs a sum\nbetween unsigned integers that could overflow and cause the check itself\nto be silently bypassed if the returned value 'loop_num_ret' is big\nenough.\n\nFix the validation avoiding the addition."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firmware: arm_scmi: Se corrige la enumeración de protocolos de lista en el protocolo base Al enumerar protocolos implementados por la plataforma SCMI utilizando BASE_DISCOVER_LIST_PROTOCOLS, la cantidad de protocolos devueltos actualmente se valida de manera incorrecta ya que la verificación emplea una suma entre números enteros sin signo que podría desbordarse y hacer que la verificación en sí se omita silenciosamente si el valor devuelto 'loop_num_ret' es lo suficientemente grande. Arregle la validación evitando la suma."
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