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Junos EX4300 Series Network Topology DoS Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Junos OS on EX4300 Series is prone to a Denial of Service vulnerability.
Insight
Insight
A certain type of legitimate traffic which can be maliciously crafted or may be valid traffic for networking requirements in customer sites received from ingress interfaces through the EX-PFE leak out blocked Spanning Tree Protocol egress interfaces creating an artificial loop in network topology. This can lead to a high bandwidth usage denial of service condition. Continued packets can create a persistent denial of service condition.
Affected Software
Affected Software
Junos OS 13.2, 14.1 and 15.1
Detection Method
Detection Method
Checks if a vulnerable OS build is present on the target host.
Solution
Solution
New builds of Junos OS software are available from Juniper.