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computer vulnerability alert CVE-2017-6227

Brocade FabricOS: denial of service via IPv6 router advertisement

Synthesis of the vulnerability

An attacker can send malicious ICMP v6 packets to Brocade FabricOS, in order to trigger a denial of service.
Impacted products: FabricOS.
Severity: 3/4.
Consequences: denial of service on server, denial of service on service.
Provenance: LAN.
Confidence: confirmed by the editor (5/5).
Creation date: 09/02/2018.
Identifiers: BSA-2018-526, CVE-2017-6227, VIGILANCE-VUL-25266.

Description of the vulnerability

The Brocade FabricOS product include IPv6 routing.

However, malicious ICMP packets of type router advertisement may trigger CPU overload and device unresponsiveness.

An attacker can therefore send malicious ICMP v6 packets to Brocade FabricOS, in order to trigger a denial of service.
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