A Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
If DNS Domain Generation Algorithm (DGA) detection or tunnel detection, and DNS-filtering traceoptions are configured, and specific valid transit DNS traffic is received this causes a PFE crash and restart, leading to a Denial of Service.
This issue affects Junos OS:
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Junos | Juniper | * | 21.4 (excluding) |
| Junos | Juniper | 21.4 (including) | 21.4 (including) |
| Junos | Juniper | 21.4-r1 (including) | 21.4-r1 (including) |
| Junos | Juniper | 21.4-r1-s1 (including) | 21.4-r1-s1 (including) |
| Junos | Juniper | 21.4-r1-s2 (including) | 21.4-r1-s2 (including) |
| Junos | Juniper | 21.4-r2 (including) | 21.4-r2 (including) |
| Junos | Juniper | 21.4-r2-s1 (including) | 21.4-r2-s1 (including) |
| Junos | Juniper | 21.4-r2-s2 (including) | 21.4-r2-s2 (including) |
| Junos | Juniper | 21.4-r3 (including) | 21.4-r3 (including) |
| Junos | Juniper | 21.4-r3-s1 (including) | 21.4-r3-s1 (including) |
| Junos | Juniper | 21.4-r3-s2 (including) | 21.4-r3-s2 (including) |
| Junos | Juniper | 21.4-r3-s3 (including) | 21.4-r3-s3 (including) |
| Junos | Juniper | 21.4-r3-s4 (including) | 21.4-r3-s4 (including) |
| Junos | Juniper | 21.4-r3-s5 (including) | 21.4-r3-s5 (including) |
| Junos | Juniper | 22.2 (including) | 22.2 (including) |
| Junos | Juniper | 22.2-r1 (including) | 22.2-r1 (including) |
| Junos | Juniper | 22.2-r1-s1 (including) | 22.2-r1-s1 (including) |
| Junos | Juniper | 22.2-r1-s2 (including) | 22.2-r1-s2 (including) |
| Junos | Juniper | 22.2-r2 (including) | 22.2-r2 (including) |
| Junos | Juniper | 22.2-r2-s1 (including) | 22.2-r2-s1 (including) |
| Junos | Juniper | 22.2-r2-s2 (including) | 22.2-r2-s2 (including) |
| Junos | Juniper | 22.2-r3 (including) | 22.2-r3 (including) |
| Junos | Juniper | 22.2-r3-s1 (including) | 22.2-r3-s1 (including) |
| Junos | Juniper | 22.2-r3-s2 (including) | 22.2-r3-s2 (including) |
| Junos | Juniper | 22.3 (including) | 22.3 (including) |
| Junos | Juniper | 22.3-r1 (including) | 22.3-r1 (including) |
| Junos | Juniper | 22.3-r1-s1 (including) | 22.3-r1-s1 (including) |
| Junos | Juniper | 22.3-r1-s2 (including) | 22.3-r1-s2 (including) |
| Junos | Juniper | 22.3-r2 (including) | 22.3-r2 (including) |
| Junos | Juniper | 22.3-r2-s1 (including) | 22.3-r2-s1 (including) |
| Junos | Juniper | 22.3-r2-s2 (including) | 22.3-r2-s2 (including) |
| Junos | Juniper | 22.3-r3 (including) | 22.3-r3 (including) |
| Junos | Juniper | 22.3-r3-s1 (including) | 22.3-r3-s1 (including) |
| Junos | Juniper | 22.3-r3-s2 (including) | 22.3-r3-s2 (including) |
| Junos | Juniper | 22.4 (including) | 22.4 (including) |
| Junos | Juniper | 22.4-r1 (including) | 22.4-r1 (including) |
| Junos | Juniper | 22.4-r1-s1 (including) | 22.4-r1-s1 (including) |
| Junos | Juniper | 22.4-r1-s2 (including) | 22.4-r1-s2 (including) |
| Junos | Juniper | 22.4-r2 (including) | 22.4-r2 (including) |
| Junos | Juniper | 22.4-r2-s1 (including) | 22.4-r2-s1 (including) |
| Junos | Juniper | 22.4-r2-s2 (including) | 22.4-r2-s2 (including) |
| Junos | Juniper | 23.2 (including) | 23.2 (including) |
| Junos | Juniper | 23.2-r1 (including) | 23.2-r1 (including) |
| Junos | Juniper | 23.2-r1-s1 (including) | 23.2-r1-s1 (including) |
| Junos | Juniper | 23.2-r1-s2 (including) | 23.2-r1-s2 (including) |