Cisco IOS XR Software Route Processor Denial of Service Vulnerability

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Summary

Cisco IOS XR Software contains a vulnerability when handling crafted packets that may result in a denial of service condition. The vulnerability only exists on Cisco 9000 Series Aggregation Services Routers (ASR) Route Switch Processor (RSP-4G and RSP-8G), Route Switch Processor 440 (RSP440), and Cisco Carrier Routing System (CRS) Performance Route Processor (PRP). The vulnerability is a result of improper handling of crafted packets and could cause the route processor, which processes the packets, to be unable to transmit packets to the fabric.

Cisco has released free software updates that address this vulnerability. This advisory is available at the following link:

http://tools.cisco.com/security/cent...20120530-iosxr