Inicio / Alerta Temprana / Vulnerabilidades / CVE-2019-1849


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*** Pendiente de traducción *** A vulnerability in the Border Gateway Patrol (BGP) Multiprotocol Label Switching (MPLS)-based Ethernet VPN (EVPN) implementation of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a logic error that occurs when the affected software processes specific EVPN routing information. An attacker could exploit this vulnerability by injecting malicious traffic patterns into the targeted EVPN network. A successful exploit could result in a crash of the l2vpn_mgr process on Provider Edge (PE) device members of the same EVPN instance (EVI). On each of the affected devices, a crash could lead to system instability and the inability to process or forward traffic through the device, resulting in a DoS condition that would require manual intervention to restore normal operating conditions.
Vector de acceso: No disponible
Complejidad de Acceso: Baja
Autenticación: No requerida para explotarla
Tipo de impacto: No hay impacto en la integridad del sistema + No hay impacto en la confidencialidad del sistema + Compromiso total de la disponibilidad del sistema
Productos y versiones vulnerables
  • Cisco Ios Xr 6.4.1 Base
  • Cisco Ios Xr 6.2.1
  • Cisco Ios Xr 6.1.1
  • Cisco Ios Xr 6.1.0
Referencias a soluciones, herramientas e información
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