This issue only affects devices with three (3) or more MPC10's installed in a single chassis with OSPF enabled and configured on the device. An Insufficient Resource Pool weakness allows an attacker to cause the device's Open Shortest Path First (OSPF) states to transition to Down, resulting in a Denial of Service (DoS) attack. This attack requires a relatively large number of specific Internet Mixed (IMIXed) types of genuine and valid IPv6 packets to be transferred by the attacker in a relatively short period of time, across three or more PFE's on the device at the same time. Continued receipt of the traffic sent by the attacker will continue to cause OSPF to remain in the Down starting state, or flap between other states and then again to Down, causing a persistent Denial of Service. Thi
The following software releases have been updated to resolve this specific issue: 18.1R2-S4, 18.1R3-S5, 18.2R1-S5, 18.2R2-S3, 18.2R3, 18.2X75-D50, 18.3R1-S4, 18.3R2, 18.3R3, 18.4R1-S2, 18.4R2, 19.1R1, and all subsequent releases.
There are no known workarounds for this issue.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS | >=18.1<18.1R2-S4, 18.1R3-S5 | 18.1R2-S4, 18.1R3-S5 | advisory ↗ |
| Juniper Networks Junos OS | >=18.1X75-D10<18.1X75* | 18.1X75* | advisory ↗ |
| Juniper Networks Junos OS | >=18.2<18.2R1-S5, 18.2R2-S3, 18.2R3 | 18.2R1-S5, 18.2R2-S3, 18.2R3 | advisory ↗ |
| Juniper Networks Junos OS | >=18.2X75<18.2X75-D50 | 18.2X75-D50 | advisory ↗ |
| Juniper Networks Junos OS | >=18.3<18.3R1-S4, 18.3R2, 18.3R3 | 18.3R1-S4, 18.3R2, 18.3R3 | advisory ↗ |
| Juniper Networks Junos OS | >=18.4<18.4R1-S2, 18.4R2 | 18.4R1-S2, 18.4R2 | advisory ↗ |