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 not encountered unless a feature is enabled that requires the device to use its built-in DNS lookup client.
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.