Description (CNA)
An uncontrolled resource consumption vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series switches allows an attacker sending large amounts of legitimate traffic destined to the device to cause Interchassis Control Protocol (ICCP) interruptions, leading to an unstable control connection between the Multi-Chassis Link Aggregation Group (MC-LAG) nodes which can in turn lead to traffic loss. Continued receipt of this amount of traffic will create a sustained Denial of Service (DoS) condition. An indication that the system could be impacted by this issue is the following log message: "DDOS_PROTOCOL_VIOLATION_SET: Warning: Host-bound traffic for protocol/exception LOCALNH:aggregate exceeded its allowed bandwidth at fpc <fpc number> for <n> times, started at <timestamp>" This issue affects Juniper Networks Junos OS on QFX5000 Series and EX4600 Series: 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R1-S1, 20.4R2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Juniper Networks / Junos OS | affected 15.1 before 15.1R7-S9; affected 17.3 before 17.3R3-S11; affected 17.4 before 17.4R2-S13, 17.4R3-S5; affected 18.3 before 18.3R3-S5; affected 18.4 before 18.4R2-S8, 18.4R3-S7; affected 19.1 before 19.1R3-S5; affected 19.2 before 19.2R1-S6, 19.2R3-S2; affected 19.3 before 19.3R2-S6, 19.3R3-S2; affected 19.4 before 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; affected 20.1 before 20.1R2-S2, 20.1R3; affected 20.2 before 20.2R2-S3, 20.2R3; affected 20.3 before 20.3R2; affected 20.4 before 20.4R1-S1, 20.4R2 |
CWE
CWE-770
References
ADP enrichment
No English description supplied.