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Vulnerability of Junos OS: denial of service via DHCPv6

Synthesis of the vulnerability 

An attacker can send malicious DHCPv6 packets to Junos OS, in order to trigger a denial of service.
Vulnerable systems: Juniper EX-Series, Juniper J-Series, Junos OS, SRX-Series.
Severity of this threat: 2/4.
Creation date: 11/10/2018.
Références of this weakness: CERTFR-2018-AVI-487, CVE-2018-0055, JSA10889, VIGILANCE-VUL-27476.

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.
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This cybersecurity vulnerability impacts software or systems such as Juniper EX-Series, Juniper J-Series, Junos OS, SRX-Series.

Our Vigil@nce team determined that the severity of this vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of LAN.

An attacker with a expert ability can exploit this weakness alert.

Solutions for this threat 

Junos OS: fixed versions for DHCPv6.
Fixed versions are indicated in information sources.
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