An Uncontrolled Resource Consumption vulnerability in Juniper Networks Junos OS on EX2300, EX3400 and EX4300 Series platforms allows an adjacent attacker sending a stream of layer 2 frames will trigger an Aggregated Ethernet (AE) interface to go down and thereby causing a Denial of Service (DoS). By continuously sending a stream of specific layer 2 frames an attacker will sustain the Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS EX4300 Series All versions prior to 15.1R7-S7; 16.1 versions prior to 16.1R7-S8; 17.1 versions prior to 17.1R2-S12; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S10, 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3; 18.3 versions prior to 18.3R2-S4, 18.3R3-S2; 18.4 versions prior to 18.4R1-S7, 18.4R2-S4, 18.4R3-S1; 19.1 versions prior to 19.1R1-S5, 19.1R2-S1, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S2, 19.3R3; 19.4 versions prior to 19.4R1-S2, 19.4R2. Juniper Networks Junos OS EX3400 and EX4300-MP Series All versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R2-S9, 18.4R3-S7; 19.1 versions prior to 19.1R2-S3, 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. Juniper Networks Junos OS EX2300 Series All versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S7, 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R2.
The product does not properly control the allocation and maintenance of a limited resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Junos | Juniper | * | 18.1 (excluding) |
| Junos | Juniper | 18.1 (including) | 18.1 (including) |
| Junos | Juniper | 18.1-r (including) | 18.1-r (including) |
| Junos | Juniper | 18.1-r1 (including) | 18.1-r1 (including) |
| Junos | Juniper | 18.1-r2 (including) | 18.1-r2 (including) |
| Junos | Juniper | 18.1-r2-s1 (including) | 18.1-r2-s1 (including) |
| Junos | Juniper | 18.1-r2-s2 (including) | 18.1-r2-s2 (including) |
| Junos | Juniper | 18.1-r2-s4 (including) | 18.1-r2-s4 (including) |
| Junos | Juniper | 18.1-r3 (including) | 18.1-r3 (including) |
| Junos | Juniper | 18.1-r3-s1 (including) | 18.1-r3-s1 (including) |
| Junos | Juniper | 18.1-r3-s10 (including) | 18.1-r3-s10 (including) |
| Junos | Juniper | 18.1-r3-s11 (including) | 18.1-r3-s11 (including) |
| Junos | Juniper | 18.1-r3-s2 (including) | 18.1-r3-s2 (including) |
| Junos | Juniper | 18.1-r3-s3 (including) | 18.1-r3-s3 (including) |
| Junos | Juniper | 18.1-r3-s4 (including) | 18.1-r3-s4 (including) |
| Junos | Juniper | 18.1-r3-s5 (including) | 18.1-r3-s5 (including) |
| Junos | Juniper | 18.1-r3-s6 (including) | 18.1-r3-s6 (including) |
| Junos | Juniper | 18.1-r3-s7 (including) | 18.1-r3-s7 (including) |
| Junos | Juniper | 18.1-r3-s8 (including) | 18.1-r3-s8 (including) |
| Junos | Juniper | 18.1-r3-s9 (including) | 18.1-r3-s9 (including) |
| Junos | Juniper | 18.2 (including) | 18.2 (including) |
| Junos | Juniper | 18.2-r (including) | 18.2-r (including) |
| Junos | Juniper | 18.2-r1 (including) | 18.2-r1 (including) |
| Junos | Juniper | 18.2-r1-s2 (including) | 18.2-r1-s2 (including) |
| Junos | Juniper | 18.2-r1-s3 (including) | 18.2-r1-s3 (including) |
| Junos | Juniper | 18.2-r1-s4 (including) | 18.2-r1-s4 (including) |
| Junos | Juniper | 18.2-r1-s5 (including) | 18.2-r1-s5 (including) |
| Junos | Juniper | 18.2-r2 (including) | 18.2-r2 (including) |
| Junos | Juniper | 18.2-r2-s1 (including) | 18.2-r2-s1 (including) |
| Junos | Juniper | 18.2-r2-s2 (including) | 18.2-r2-s2 (including) |
| Junos | Juniper | 18.2-r2-s3 (including) | 18.2-r2-s3 (including) |
| Junos | Juniper | 18.2-r2-s4 (including) | 18.2-r2-s4 (including) |
| Junos | Juniper | 18.2-r2-s5 (including) | 18.2-r2-s5 (including) |
| Junos | Juniper | 18.2-r2-s6 (including) | 18.2-r2-s6 (including) |
| Junos | Juniper | 18.2-r2-s7 (including) | 18.2-r2-s7 (including) |
| Junos | Juniper | 18.2-r2-s8 (including) | 18.2-r2-s8 (including) |
| Junos | Juniper | 18.2-r3 (including) | 18.2-r3 (including) |
| Junos | Juniper | 18.2-r3-s1 (including) | 18.2-r3-s1 (including) |
| Junos | Juniper | 18.2-r3-s2 (including) | 18.2-r3-s2 (including) |
| Junos | Juniper | 18.2-r3-s3 (including) | 18.2-r3-s3 (including) |
| Junos | Juniper | 18.2-r3-s4 (including) | 18.2-r3-s4 (including) |
| Junos | Juniper | 18.2-r3-s5 (including) | 18.2-r3-s5 (including) |
| Junos | Juniper | 18.2-r3-s6 (including) | 18.2-r3-s6 (including) |
| Junos | Juniper | 18.3 (including) | 18.3 (including) |
| Junos | Juniper | 18.3-r (including) | 18.3-r (including) |
| Junos | Juniper | 18.3-r1 (including) | 18.3-r1 (including) |
| Junos | Juniper | 18.3-r1-s1 (including) | 18.3-r1-s1 (including) |
| Junos | Juniper | 18.3-r1-s2 (including) | 18.3-r1-s2 (including) |
| Junos | Juniper | 18.3-r1-s3 (including) | 18.3-r1-s3 (including) |
| Junos | Juniper | 18.3-r1-s4 (including) | 18.3-r1-s4 (including) |
| Junos | Juniper | 18.3-r1-s5 (including) | 18.3-r1-s5 (including) |
| Junos | Juniper | 18.3-r1-s6 (including) | 18.3-r1-s6 (including) |
| Junos | Juniper | 18.3-r2 (including) | 18.3-r2 (including) |
| Junos | Juniper | 18.3-r2-s1 (including) | 18.3-r2-s1 (including) |
| Junos | Juniper | 18.3-r2-s2 (including) | 18.3-r2-s2 (including) |
| Junos | Juniper | 18.3-r2-s3 (including) | 18.3-r2-s3 (including) |
| Junos | Juniper | 18.3-r2-s4 (including) | 18.3-r2-s4 (including) |
| Junos | Juniper | 18.3-r3 (including) | 18.3-r3 (including) |
| Junos | Juniper | 18.3-r3-s1 (including) | 18.3-r3-s1 (including) |
| Junos | Juniper | 18.3-r3-s2 (including) | 18.3-r3-s2 (including) |
| Junos | Juniper | 18.3-r3-s3 (including) | 18.3-r3-s3 (including) |
| Junos | Juniper | 18.4 (including) | 18.4 (including) |
| Junos | Juniper | 18.4-r1 (including) | 18.4-r1 (including) |
| Junos | Juniper | 18.4-r1-s1 (including) | 18.4-r1-s1 (including) |
| Junos | Juniper | 18.4-r1-s2 (including) | 18.4-r1-s2 (including) |
| Junos | Juniper | 18.4-r1-s3 (including) | 18.4-r1-s3 (including) |
| Junos | Juniper | 18.4-r1-s4 (including) | 18.4-r1-s4 (including) |
| Junos | Juniper | 18.4-r1-s5 (including) | 18.4-r1-s5 (including) |
| Junos | Juniper | 18.4-r1-s6 (including) | 18.4-r1-s6 (including) |
| Junos | Juniper | 18.4-r1-s7 (including) | 18.4-r1-s7 (including) |
| Junos | Juniper | 18.4-r2 (including) | 18.4-r2 (including) |
| Junos | Juniper | 18.4-r2-s1 (including) | 18.4-r2-s1 (including) |
| Junos | Juniper | 18.4-r2-s2 (including) | 18.4-r2-s2 (including) |
| Junos | Juniper | 18.4-r2-s3 (including) | 18.4-r2-s3 (including) |
| Junos | Juniper | 18.4-r2-s4 (including) | 18.4-r2-s4 (including) |
| Junos | Juniper | 18.4-r2-s5 (including) | 18.4-r2-s5 (including) |
| Junos | Juniper | 18.4-r2-s6 (including) | 18.4-r2-s6 (including) |
| Junos | Juniper | 18.4-r2-s7 (including) | 18.4-r2-s7 (including) |
| Junos | Juniper | 18.4-r2-s8 (including) | 18.4-r2-s8 (including) |
| Junos | Juniper | 18.4-r3 (including) | 18.4-r3 (including) |
| Junos | Juniper | 18.4-r3-s1 (including) | 18.4-r3-s1 (including) |
| Junos | Juniper | 18.4-r3-s2 (including) | 18.4-r3-s2 (including) |
| Junos | Juniper | 18.4-r3-s3 (including) | 18.4-r3-s3 (including) |
| Junos | Juniper | 18.4-r3-s4 (including) | 18.4-r3-s4 (including) |
| Junos | Juniper | 18.4-r3-s5 (including) | 18.4-r3-s5 (including) |
| Junos | Juniper | 18.4-r3-s6 (including) | 18.4-r3-s6 (including) |
| Junos | Juniper | 19.1 (including) | 19.1 (including) |
| Junos | Juniper | 19.1-r1 (including) | 19.1-r1 (including) |
| Junos | Juniper | 19.1-r1-s1 (including) | 19.1-r1-s1 (including) |
| Junos | Juniper | 19.1-r1-s2 (including) | 19.1-r1-s2 (including) |
| Junos | Juniper | 19.1-r1-s3 (including) | 19.1-r1-s3 (including) |
| Junos | Juniper | 19.1-r1-s4 (including) | 19.1-r1-s4 (including) |
| Junos | Juniper | 19.1-r1-s5 (including) | 19.1-r1-s5 (including) |
| Junos | Juniper | 19.1-r1-s6 (including) | 19.1-r1-s6 (including) |
| Junos | Juniper | 19.1-r2 (including) | 19.1-r2 (including) |
| Junos | Juniper | 19.1-r2-s1 (including) | 19.1-r2-s1 (including) |
| Junos | Juniper | 19.1-r2-s2 (including) | 19.1-r2-s2 (including) |
| Junos | Juniper | 19.1-r3 (including) | 19.1-r3 (including) |
| Junos | Juniper | 19.1-r3-s1 (including) | 19.1-r3-s1 (including) |
| Junos | Juniper | 19.1-r3-s2 (including) | 19.1-r3-s2 (including) |
| Junos | Juniper | 19.1-r3-s3 (including) | 19.1-r3-s3 (including) |
| Junos | Juniper | 19.2 (including) | 19.2 (including) |
| Junos | Juniper | 19.2-r1 (including) | 19.2-r1 (including) |
| Junos | Juniper | 19.2-r1-s1 (including) | 19.2-r1-s1 (including) |
| Junos | Juniper | 19.2-r1-s2 (including) | 19.2-r1-s2 (including) |
| Junos | Juniper | 19.2-r1-s3 (including) | 19.2-r1-s3 (including) |
| Junos | Juniper | 19.2-r1-s4 (including) | 19.2-r1-s4 (including) |
| Junos | Juniper | 19.2-r1-s5 (including) | 19.2-r1-s5 (including) |
| Junos | Juniper | 19.2-r1-s6 (including) | 19.2-r1-s6 (including) |
| Junos | Juniper | 19.2-r1-s7 (including) | 19.2-r1-s7 (including) |
| Junos | Juniper | 19.2-r2 (including) | 19.2-r2 (including) |
| Junos | Juniper | 19.2-r2-s1 (including) | 19.2-r2-s1 (including) |
| Junos | Juniper | 19.2-r3 (including) | 19.2-r3 (including) |
| Junos | Juniper | 19.3 (including) | 19.3 (including) |
| Junos | Juniper | 19.3-r1 (including) | 19.3-r1 (including) |
| Junos | Juniper | 19.3-r1-s1 (including) | 19.3-r1-s1 (including) |
| Junos | Juniper | 19.3-r2 (including) | 19.3-r2 (including) |
| Junos | Juniper | 19.3-r2-s1 (including) | 19.3-r2-s1 (including) |
| Junos | Juniper | 19.3-r2-s2 (including) | 19.3-r2-s2 (including) |
| Junos | Juniper | 19.3-r2-s3 (including) | 19.3-r2-s3 (including) |
| Junos | Juniper | 19.3-r2-s4 (including) | 19.3-r2-s4 (including) |
| Junos | Juniper | 19.3-r2-s5 (including) | 19.3-r2-s5 (including) |
| Junos | Juniper | 19.3-r2-s6 (including) | 19.3-r2-s6 (including) |
| Junos | Juniper | 19.3-r3 (including) | 19.3-r3 (including) |
| Junos | Juniper | 19.4-r1 (including) | 19.4-r1 (including) |
| Junos | Juniper | 19.4-r1-s1 (including) | 19.4-r1-s1 (including) |
| Junos | Juniper | 19.4-r1-s2 (including) | 19.4-r1-s2 (including) |
| Junos | Juniper | 19.4-r1-s3 (including) | 19.4-r1-s3 (including) |
| Junos | Juniper | 19.4-r1-s4 (including) | 19.4-r1-s4 (including) |
| Junos | Juniper | 19.4-r2 (including) | 19.4-r2 (including) |
| Junos | Juniper | 19.4-r2-s1 (including) | 19.4-r2-s1 (including) |
| Junos | Juniper | 19.4-r2-s2 (including) | 19.4-r2-s2 (including) |
| Junos | Juniper | 19.4-r2-s3 (including) | 19.4-r2-s3 (including) |
| Junos | Juniper | 19.4-r2-s4 (including) | 19.4-r2-s4 (including) |
| Junos | Juniper | 19.4-r2-s5 (including) | 19.4-r2-s5 (including) |
| Junos | Juniper | 19.4-r3 (including) | 19.4-r3 (including) |
| Junos | Juniper | 20.1-r1 (including) | 20.1-r1 (including) |
| Junos | Juniper | 20.1-r1-s1 (including) | 20.1-r1-s1 (including) |
| Junos | Juniper | 20.1-r1-s2 (including) | 20.1-r1-s2 (including) |
| Junos | Juniper | 20.1-r1-s3 (including) | 20.1-r1-s3 (including) |
| Junos | Juniper | 20.1-r1-s4 (including) | 20.1-r1-s4 (including) |
| Junos | Juniper | 20.1-r2 (including) | 20.1-r2 (including) |
| Junos | Juniper | 20.1-r2-s1 (including) | 20.1-r2-s1 (including) |
| Junos | Juniper | 20.1-r2-s2 (including) | 20.1-r2-s2 (including) |
| Junos | Juniper | 20.2-r1 (including) | 20.2-r1 (including) |
| Junos | Juniper | 20.2-r1-s1 (including) | 20.2-r1-s1 (including) |
| Junos | Juniper | 20.2-r1-s2 (including) | 20.2-r1-s2 (including) |
| Junos | Juniper | 20.2-r1-s3 (including) | 20.2-r1-s3 (including) |
| Junos | Juniper | 20.2-r2 (including) | 20.2-r2 (including) |
| Junos | Juniper | 20.2-r2-s1 (including) | 20.2-r2-s1 (including) |
| Junos | Juniper | 20.2-r2-s2 (including) | 20.2-r2-s2 (including) |
| Junos | Juniper | 20.2-r2-s3 (including) | 20.2-r2-s3 (including) |
| Junos | Juniper | 20.3-r1 (including) | 20.3-r1 (including) |
| Junos | Juniper | 20.3-r1-s1 (including) | 20.3-r1-s1 (including) |
Mitigation of resource exhaustion attacks requires that the target system either:
The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.