====================================================================

                                  CERT-Renater

                     Note d'Information No. 2016/VULN229
_____________________________________________________________________

DATE                : 26/05/2016

HARDWARE PLATFORM(S): Cisco.

OPERATING SYSTEM(S): Cisco IOS XR Software, Cisco IOS XE Software.

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

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)

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

Summary
=======

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

==========================================================
Serveur de référence du CERT-Renater
https://services.renater.fr/ssi/
==========================================================
+ CERT-RENATER          | tel : 01-53-94-20-44           +
+ 23 - 25 Rue Daviel    | fax : 01-53-94-20-41           +
+ 75013 Paris           | email: cert@support.renater.fr +
==========================================================