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vulnerability CVE-2017-3803

Cisco Catalyst: denial of service via IPv6 Neighbor Discovery

Synthesis of the vulnerability

An attacker can send malicious IPv6 Neighbor Discovery packets to Cisco Catalyst, in order to trigger a denial of service.
Impacted products: Cisco Catalyst, IOS by Cisco.
Severity: 2/4.
Creation date: 19/01/2017.
Identifiers: cisco-sa-20170118-catalyst, CSCva72252, CVE-2017-3803, VIGILANCE-VUL-21630.

Description of the vulnerability

The Cisco Catalyst product has a service to manage received IPv6 Neighbor Discovery packets.

However, when malicious IPv6 Neighbor Discovery packets are received, a fatal error occurs.

An attacker can therefore send malicious IPv6 Neighbor Discovery packets to Cisco Catalyst, in order to trigger a denial of service.
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