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CVE-2019-17498

Estado: ModificadaAlta (8.1)—

In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.

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 (10)

Debian — Debian LinuxFedoraproject — FedoraLibssh2 — Libssh2Netapp — Active IQ Unified ManagerNetapp — Bootstrap OSNetapp — Element SoftwareNetapp — HCI Management NodeNetapp — Ontap Select Deploy Administration UtilityNetapp — SolidfireOpensuse — Leap

CWE

Referencias

JSON original (NVD)

Mostrar
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          "value": "CWE-190"
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      "value": "In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server."
    },
    {
      "lang": "es",
      "value": "En libssh2 versión v1.9.0 y anteriores, la lógica de la función SSH_MSG_DISCONNECT en el archivo packet.c presenta un desbordamiento de enteros en una comprobación de límites, lo que permite a un atacante especificar un desplazamiento arbitrario (fuera de límites) para una lectura de memoria posterior. Un servidor SSH diseñado puede ser capaz de revelar información confidencial o causar una condición de denegación de servicio en el sistema del cliente cuando un usuario conecta con el servidor."
    }
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  "lastModified": "2026-06-17T02:24:00.503",
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