An Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).
On all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.
This issue affects:
Juniper Networks Junos OS Evolved
- All versions earlier than 21.2R3-S7-EVO;
- 21.3 versions earlier than 21.3R3-S5-EVO ;
- 21.4 versions earlier than 21.4R3-S5-EVO;
- 22.1 versions earlier than 22.1R3-S4-EVO;
- 22.2 versions earlier than 22.2R3-S3-EVO ;
- 22.3 versions earlier than 22.3R3-EVO;
- 22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.
Weakness
The product does not handle or incorrectly handles input that is not syntactically well-formed with respect to the associated specification.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Junos_os_evolved | Juniper | * | 21.2 (excluding) |
| Junos_os_evolved | Juniper | 21.2 (including) | 21.2 (including) |
| Junos_os_evolved | Juniper | 21.2-r1 (including) | 21.2-r1 (including) |
| Junos_os_evolved | Juniper | 21.2-r1-s1 (including) | 21.2-r1-s1 (including) |
| Junos_os_evolved | Juniper | 21.2-r1-s2 (including) | 21.2-r1-s2 (including) |
| Junos_os_evolved | Juniper | 21.2-r2 (including) | 21.2-r2 (including) |
| Junos_os_evolved | Juniper | 21.2-r2-s1 (including) | 21.2-r2-s1 (including) |
| Junos_os_evolved | Juniper | 21.2-r2-s2 (including) | 21.2-r2-s2 (including) |
| Junos_os_evolved | Juniper | 21.2-r3 (including) | 21.2-r3 (including) |
| Junos_os_evolved | Juniper | 21.2-r3-s1 (including) | 21.2-r3-s1 (including) |
| Junos_os_evolved | Juniper | 21.2-r3-s2 (including) | 21.2-r3-s2 (including) |
| Junos_os_evolved | Juniper | 21.2-r3-s3 (including) | 21.2-r3-s3 (including) |
| Junos_os_evolved | Juniper | 21.2-r3-s4 (including) | 21.2-r3-s4 (including) |
| Junos_os_evolved | Juniper | 21.2-r3-s5 (including) | 21.2-r3-s5 (including) |
| Junos_os_evolved | Juniper | 21.2-r3-s6 (including) | 21.2-r3-s6 (including) |
| Junos_os_evolved | Juniper | 21.3 (including) | 21.3 (including) |
| Junos_os_evolved | Juniper | 21.3-r1 (including) | 21.3-r1 (including) |
| Junos_os_evolved | Juniper | 21.3-r1-s1 (including) | 21.3-r1-s1 (including) |
| Junos_os_evolved | Juniper | 21.3-r2 (including) | 21.3-r2 (including) |
| Junos_os_evolved | Juniper | 21.3-r2-s1 (including) | 21.3-r2-s1 (including) |
| Junos_os_evolved | Juniper | 21.3-r2-s2 (including) | 21.3-r2-s2 (including) |
| Junos_os_evolved | Juniper | 21.3-r3 (including) | 21.3-r3 (including) |
| Junos_os_evolved | Juniper | 21.3-r3-s1 (including) | 21.3-r3-s1 (including) |
| Junos_os_evolved | Juniper | 21.3-r3-s2 (including) | 21.3-r3-s2 (including) |
| Junos_os_evolved | Juniper | 21.3-r3-s3 (including) | 21.3-r3-s3 (including) |
| Junos_os_evolved | Juniper | 21.3-r3-s4 (including) | 21.3-r3-s4 (including) |
| Junos_os_evolved | Juniper | 21.4 (including) | 21.4 (including) |
| Junos_os_evolved | Juniper | 21.4-r1 (including) | 21.4-r1 (including) |
| Junos_os_evolved | Juniper | 21.4-r1-s1 (including) | 21.4-r1-s1 (including) |
| Junos_os_evolved | Juniper | 21.4-r1-s2 (including) | 21.4-r1-s2 (including) |
| Junos_os_evolved | Juniper | 21.4-r2 (including) | 21.4-r2 (including) |
| Junos_os_evolved | Juniper | 21.4-r2-s1 (including) | 21.4-r2-s1 (including) |
| Junos_os_evolved | Juniper | 21.4-r2-s2 (including) | 21.4-r2-s2 (including) |
| Junos_os_evolved | Juniper | 21.4-r3 (including) | 21.4-r3 (including) |
| Junos_os_evolved | Juniper | 21.4-r3-s1 (including) | 21.4-r3-s1 (including) |
| Junos_os_evolved | Juniper | 21.4-r3-s2 (including) | 21.4-r3-s2 (including) |
| Junos_os_evolved | Juniper | 21.4-r3-s3 (including) | 21.4-r3-s3 (including) |
| Junos_os_evolved | Juniper | 21.4-r3-s4 (including) | 21.4-r3-s4 (including) |
| Junos_os_evolved | Juniper | 22.1 (including) | 22.1 (including) |
| Junos_os_evolved | Juniper | 22.1-r1 (including) | 22.1-r1 (including) |
| Junos_os_evolved | Juniper | 22.1-r1-s1 (including) | 22.1-r1-s1 (including) |
| Junos_os_evolved | Juniper | 22.1-r1-s2 (including) | 22.1-r1-s2 (including) |
| Junos_os_evolved | Juniper | 22.1-r2 (including) | 22.1-r2 (including) |
| Junos_os_evolved | Juniper | 22.1-r2-s1 (including) | 22.1-r2-s1 (including) |
| Junos_os_evolved | Juniper | 22.1-r3 (including) | 22.1-r3 (including) |
| Junos_os_evolved | Juniper | 22.1-r3-s1 (including) | 22.1-r3-s1 (including) |
| Junos_os_evolved | Juniper | 22.1-r3-s2 (including) | 22.1-r3-s2 (including) |
| Junos_os_evolved | Juniper | 22.1-r3-s3 (including) | 22.1-r3-s3 (including) |
| Junos_os_evolved | Juniper | 22.2 (including) | 22.2 (including) |
| Junos_os_evolved | Juniper | 22.2-r1 (including) | 22.2-r1 (including) |
| Junos_os_evolved | Juniper | 22.2-r1-s1 (including) | 22.2-r1-s1 (including) |
| Junos_os_evolved | Juniper | 22.2-r2 (including) | 22.2-r2 (including) |
| Junos_os_evolved | Juniper | 22.2-r2-s1 (including) | 22.2-r2-s1 (including) |
| Junos_os_evolved | Juniper | 22.2-r2-s2 (including) | 22.2-r2-s2 (including) |
| Junos_os_evolved | Juniper | 22.2-r3 (including) | 22.2-r3 (including) |
| Junos_os_evolved | Juniper | 22.2-r3-s1 (including) | 22.2-r3-s1 (including) |
| Junos_os_evolved | Juniper | 22.2-r3-s2 (including) | 22.2-r3-s2 (including) |
| Junos_os_evolved | Juniper | 22.3 (including) | 22.3 (including) |
| Junos_os_evolved | Juniper | 22.3-r1 (including) | 22.3-r1 (including) |
| Junos_os_evolved | Juniper | 22.3-r1-s1 (including) | 22.3-r1-s1 (including) |
| Junos_os_evolved | Juniper | 22.3-r1-s2 (including) | 22.3-r1-s2 (including) |
| Junos_os_evolved | Juniper | 22.3-r2 (including) | 22.3-r2 (including) |
| Junos_os_evolved | Juniper | 22.3-r2-s1 (including) | 22.3-r2-s1 (including) |
| Junos_os_evolved | Juniper | 22.3-r2-s2 (including) | 22.3-r2-s2 (including) |
| Junos_os_evolved | Juniper | 22.4 (including) | 22.4 (including) |
| Junos_os_evolved | Juniper | 22.4-r1 (including) | 22.4-r1 (including) |
| Junos_os_evolved | Juniper | 22.4-r1-s1 (including) | 22.4-r1-s1 (including) |
| Junos_os_evolved | Juniper | 22.4-r1-s2 (including) | 22.4-r1-s2 (including) |