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CVE-2021-3571

Estado: ModificadaAlta (7.1)—

A flaw was found in the ptp4l program of the linuxptp package. When ptp4l is operating on a little-endian architecture as a PTP transparent clock, a remote attacker could send a crafted one-step sync message to cause an information leak or crash. The highest threat from this vulnerability is to data confidentiality and system availability. This flaw affects linuxptp versions before 3.1.1 and before 2.0.1.

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 (3)

Fedoraproject — FedoraLinuxptp Project — LinuxptpRedhat — Enterprise Linux

CWE

Referencias

JSON original (NVD)

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  "published": "2021-07-09T11:15:08.960",
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      "value": "A flaw was found in the ptp4l program of the linuxptp package. When ptp4l is operating on a little-endian architecture as a PTP transparent clock, a remote attacker could send a crafted one-step sync message to cause an information leak or crash. The highest threat from this vulnerability is to data confidentiality and system availability. This flaw affects linuxptp versions before 3.1.1 and before 2.0.1."
    },
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      "lang": "es",
      "value": "Se ha encontrado un fallo en el programa ptp4l del paquete linuxptp. Cuando ptp4l está operando en una arquitectura little-endian como transparent clock PTP, un atacante remoto podría enviar un mensaje de sincronización de un paso diseñado para causar un filtrado de información o un bloqueo. La mayor amenaza de esta vulnerabilidad es la confidencialidad de los datos y la disponibilidad del sistema. Este fallo afecta a versiones de linuxptp anteriores a 3.1.1 y anteriores a 2.0.1"
    }
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  "lastModified": "2026-06-17T04:05:21.800",
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