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Juniper NetScreen Firewall DNS lookup/Malformed IPv6 packet Denial of Service Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Juniper NetScreen Firewall is prone to a denial-of-service vulnerability.
Insight
Insight
A Denial of Service (DoS) issue has been found in Juniper Networks NetScreen Firewall products. When encountered, this issue can cause the device to crash and reboot. If an attacker were to repeatedly exploit the issue a sustained denial of service could take place on the device. The issue is caused when a certain sequence of malformed IPv6 packets are sent to the device's IP directly. This issue will not take place if the packets are traversing the network through the firewall.
Affected Software
Affected Software
ScreenOS 6.3 prior to 6.3.0r17
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Updates are available. Please see the references or vendor advisory for more information.