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Vigil@nce - Junos OS: denial of service via DHCPv6

December 2018 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An attacker can send malicious DHCPv6 packets to Junos OS, in
order to trigger a denial of service.

Impacted products: Juniper EX-Series, Juniper J-Series, Junos OS,
SRX-Series.

Severity: 2/4.

Consequences: denial of service on server, denial of service on
service.

Provenance: LAN.

Confidence: confirmed by the editor (5/5).

Creation date: 11/10/2018.

DESCRIPTION OF THE VULNERABILITY

The Junos OS product has a service to manage received DHCPv6
packets.

However, when malicious DHCPv6 packets are received, a fatal error
occurs.

An attacker can therefore send malicious DHCPv6 packets to Junos
OS, in order to trigger a denial of service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Junos-OS-denial-of-service-via-DHCPv6-27476


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