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Date: Thu, 30 Jul 2015 12:07:44 -0400
From: Cisco Systems Product Security Incident Response Team <psirt@...co.com>
To: bugtraq@...urityfocus.com
Cc: psirt@...co.com
Subject: Cisco Security Advisory: Cisco ASR 1000 Series Aggregation Services Routers Fragmented Packet Denial of Service Vulnerability

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Cisco Security Advisory: Cisco ASR 1000 Series Aggregation Services Routers Fragmented Packet Denial of Service Vulnerability

Advisory ID: cisco-sa-20150730-asr1k

Revision 1.0

For Public Release 2015 July 30 16:00  UTC (GMT)

+-----------------------------------------------------------------------

Summary
=======
A vulnerability in the code handling the reassembly of fragmented IP version 4 (IPv4) or IP version 6 (IPv6) packets of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause a crash of the Embedded Services Processor (ESP) processing the packet.

The vulnerability is due to improper processing of crafted, fragmented packets. An attacker could exploit this vulnerability by sending a crafted sequence of fragmented packets. An exploit could allow the attacker to cause a reload of the affected platform.

Cisco has released software updates that address this vulnerability.

There are no workarounds to mitigate this vulnerability.

This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150730-asr1k

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