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Cisco Security Advisory 20160525-ipv6

Cisco Security Advisory 20160525-ipv6
Posted May 25, 2016
Authored by Cisco Systems | Site cisco.com

Cisco Security Advisory - A vulnerability in the IP Version 6 (IPv6) packet processing functions of Cisco IOS XR Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to stop processing IPv6 traffic, leading to a denial of service (DoS) condition on the device. The vulnerability is due to insufficient processing logic for crafted IPv6 packets that are sent to an affected device. An attacker could exploit this vulnerability by sending crafted IPv6 Neighbor Discovery packets to an affected device for processing. A successful exploit could allow the attacker to cause the device to stop processing IPv6 traffic, leading to a DoS condition on the device. Cisco will release software updates that address this vulnerability. There are no workarounds that address this vulnerability.

tags | advisory, remote, denial of service
systems | cisco, osx
SHA-256 | 422dd95ef9c0a22224d798a49ef218e76220a608771dbadde196bfc3eb0fb2fb

Cisco Security Advisory 20160525-ipv6

Change Mirror Download
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Hash: SHA1

Cisco Products IPv6 Neighbor Discovery Crafted Packet Denial of Service Vulnerability

Advisory ID: cisco-sa-20160525-ipv6

Revision 1.0

For Public Release 2016 May 25 16:00 UTC (GMT)

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Summary
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A vulnerability in the IP Version 6 (IPv6) packet processing functions of Cisco IOS XR Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to stop processing IPv6 traffic, leading to a denial of service (DoS) condition on the device.

The vulnerability is due to insufficient processing logic for crafted IPv6 packets that are sent to an affected device. An attacker could exploit this vulnerability by sending crafted IPv6 Neighbor Discovery packets to an affected device for processing. A successful exploit could allow the attacker to cause the device to stop processing IPv6 traffic, leading to a DoS condition on the device.

Cisco will release software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160525-ipv6

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