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Vigil@nce - Cisco IOS, XE: denial of service via DHCPv6
October 2014 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can send a malicious DHCPv6 packet to Cisco IOS or IOS XE, in order to trigger a denial of service.
Impacted products: Cisco Catalyst, IOS, IOS XE, Cisco Router xx00
Series
Severity: 2/4
Creation date: 25/09/2014
DESCRIPTION OF THE VULNERABILITY
The Cisco IOS or IOS XE product has a service to manage DHCPv6 packets.
However, when a malicious packet is received, a fatal error occurs.
An attacker can therefore send a malicious DHCPv6 packet to Cisco IOS or IOS XE, in order to trigger a denial of service.
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