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Subject:

Cisco Security Advisory: Cisco IOS XR Software Route Processor Denial of Service Vulnerability

From:

Cisco Systems Product Security Incident Response Team <[log in to unmask]>

Reply-To:

[log in to unmask]

Date:

Wed, 30 May 2012 12:09:11 -0400

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Cisco IOS XR Software Route Processor Denial of Service Vulnerability

Advisory ID: cisco-sa-20120530-iosxr

Revision 1.0

For Public Release 2012 May 30 16:00 UTC (GMT)
+---------------------------------------------------------------------
 
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 (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/center/content/CiscoSecurityAdvisory/cisco-sa-20120530-iosxr
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