Juniper Junos CVE-2019-0065 Denial of Service Vulnerability

Description

Juniper Junos is prone to a denial-of-service vulnerability. An attacker may exploit this issue to cause denial-of-service conditions. The following versions of Junos on Juniper MX-Series platform are vulnerable: Juniper Junos 16.1 versions prior to 16.1R7-S5 Juniper Junos 16.2 versions prior to 16.2R2-S11 Juniper Junos 17.1 versions prior to 17.1R3 Juniper Junos 17.2 versions prior to 17.2R3-S3 Juniper Junos 17.3 versions prior to 17.3R3-S6 Juniper Junos 17.4 versions prior to 17.4R2-S8 and 17.4R3 Juniper Junos 18.1 versions prior to 18.1R3-S3 Juniper Junos 18.2 versions prior to 18.2R3 Juniper Junos 18.3 versions prior to 18.3R2 Juniper Junos 18.4 versions prior to 18.4R2

Technologies Affected

• Juniper Junos 16.1
• Juniper Junos 16.2
• Juniper Junos 17.1
• Juniper Junos 17.2
• Juniper Junos 17.3
• Juniper Junos 17.4
• Juniper Junos 18.1
• Juniper Junos 18.2
• Juniper Junos 18.3
• Juniper Junos 18.4
• Juniper MX Series

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn’t needed, block access at the network perimeter to computers hosting the vulnerable device.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity such as unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Updates are available. Please see the references or vendor advisory for more information.