ID de Prueba:	1.3.6.1.4.1.25623.1.0.105687
Categoría:	CISCO
Título:	Cisco IOS XR Software Crafted IPv6 Packet Denial of Service Vulnerability (cisco-sa-20150611-iosxr)
Resumen:	A vulnerability in the IP version 6 (IPv6) processing code of; Cisco IOS XR Software for Cisco CRS-3 Carrier Routing System could allow an unauthenticated,; remote attacker to trigger an ASIC scan of the Network Processor Unit (NPU) and a reload of the; line card processing an IPv6 packet.
Descripción:	Summary: A vulnerability in the IP version 6 (IPv6) processing code of Cisco IOS XR Software for Cisco CRS-3 Carrier Routing System could allow an unauthenticated, remote attacker to trigger an ASIC scan of the Network Processor Unit (NPU) and a reload of the line card processing an IPv6 packet. Vulnerability Insight: The vulnerability is due to incorrect processing of an IPv6 packet carrying IPv6 extension headers that are valid but unlikely to be seen during normal operation. An attacker could exploit this vulnerability by sending such an IPv6 packet to an affected device that is configured to process IPv6 traffic. To exploit this vulnerability, an attacker may need to acquire additional information about the targeted device, such as whether the device has specific line cards installed and configured to process IPv6 traffic in addition to running an affected release of Cisco IOS XR Software. An attacker cannot exploit this vulnerability if these conditions are not met. Vulnerability Impact: A successful exploit of this vulnerability could cause a widespread availability impact to systems that rely on an affected device for traffic forwarding. Solution: See the referenced vendor advisory for a solution. CVSS Score: 7.8 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2015-0769 Cisco Security Advisory: 20150611 Cisco IOS XR Software Crafted IPv6 Packet Denial of Service Vulnerability http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150611-iosxr http://www.securitytracker.com/id/1032563
Copyright	Copyright (C) 2016 Greenbone Networks GmbH

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