An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a high amount of specific traffic is received on a SRX4600 device, due to an error in internal packet handling, a consistent rise in CPU memory utilization occurs. This results in packet drops in the traffic and eventually the PFE crashes. A manual reboot of the PFE will be required to restore the device to original state. This issue affects Junos OS: * 21.2 before 21.2R3-S7, * 21.4 before 21.4R3-S6, * 22.1 before 22.1R3-S5, * 22.2 before 22.2R3-S3, * 22.3 before 22.3R3-S2, * 22.4 before 22.4R3, * 23.2 before 23.2R1-S
The following software releases have been updated to resolve this specific issue: 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R1-S2, 23.2R2, 23.4R1, and all subsequent releases.
There are no known workarounds for this issue.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS | >=21.2<21.2R3-S7 | 21.2R3-S7 | advisory ↗ |
| Juniper Networks Junos OS | >=21.4<21.4R3-S6 | 21.4R3-S6 | advisory ↗ |
| Juniper Networks Junos OS | >=22.1<22.1R3-S5 | 22.1R3-S5 | advisory ↗ |
| Juniper Networks Junos OS | >=22.2<22.2R3-S3 | 22.2R3-S3 | advisory ↗ |
| Juniper Networks Junos OS | >=22.3<22.3R3-S2 | 22.3R3-S2 | advisory ↗ |
| Juniper Networks Junos OS | >=22.4<22.4R3 | 22.4R3 | advisory ↗ |
| Juniper Networks Junos OS | >=23.2<23.2R1-S2, 23.2R2 | 23.2R1-S2, 23.2R2 | advisory ↗ |