CVE-2021-31365
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Juniper Networks | Junos OS | unspecified < 15.1R7-S7 | affected |
| Juniper Networks | Junos OS | 16.1 < 16.1R7-S8 | affected |
| Juniper Networks | Junos OS | 17.1 < 17.1R2-S12 | affected |
| Juniper Networks | Junos OS | 17.2 < 17.2R3-S4 | affected |
| Juniper Networks | Junos OS | 17.3 < 17.3R3-S8 | affected |
| Juniper Networks | Junos OS | 17.4 < 17.4R2-S10, 17.4R3-S2 | affected |
| Juniper Networks | Junos OS | 18.1 < 18.1R3-S10 | affected |
| Juniper Networks | Junos OS | 18.2 < 18.2R2-S7, 18.2R3-S3 | affected |
| Juniper Networks | Junos OS | 18.3 < 18.3R2-S4, 18.3R3-S2 | affected |
| Juniper Networks | Junos OS | 18.4 < 18.4R1-S7, 18.4R2-S4, 18.4R3-S1 | affected |
| Juniper Networks | Junos OS | 19.1 < 19.1R1-S5, 19.1R2-S1, 19.1R3 | affected |
| Juniper Networks | Junos OS | 19.2 < 19.2R1-S5, 19.2R2 | affected |
| Juniper Networks | Junos OS | 19.3 < 19.3R2-S2, 19.3R3 | affected |
| Juniper Networks | Junos OS | 19.4 < 19.4R1-S2, 19.4R2 | affected |
| Juniper Networks | Junos OS | unspecified < 18.1R3-S12 | affected |
| Juniper Networks | Junos OS | 18.2 < 18.2R3-S7 | affected |
| Juniper Networks | Junos OS | 18.3 < 18.3R3-S4 | affected |
| Juniper Networks | Junos OS | 18.4 < 18.4R2-S9, 18.4R3-S7 | affected |
| Juniper Networks | Junos OS | 19.1 < 19.1R2-S3, 19.1R3-S4 | affected |
| Juniper Networks | Junos OS | 19.2 < 19.2R3-S1 | affected |
| Juniper Networks | Junos OS | 19.3 < 19.3R3-S1 | affected |
| Juniper Networks | Junos OS | 19.4 < 19.4R3-S1 | affected |
| Juniper Networks | Junos OS | 20.1 < 20.1R3 | affected |
| Juniper Networks | Junos OS | 20.2 < 20.2R3 | affected |
| Juniper Networks | Junos OS | 20.3 < 20.3R2 | affected |
| Juniper Networks | Junos OS | unspecified < 18.3R3-S5 | affected |
| Juniper Networks | Junos OS | 18.4 < 18.4R2-S9, 18.4R3-S9 | affected |
| Juniper Networks | Junos OS | 19.1 < 19.1R2-S3, 19.1R3-S6 | affected |
| Juniper Networks | Junos OS | 19.2 < 19.2R1-S7, 19.2R3-S3 | affected |
| Juniper Networks | Junos OS | 19.3 < 19.3R2-S7, 19.3R3-S3 | affected |
| Juniper Networks | Junos OS | 19.4 < 19.4R3-S5 | affected |
| Juniper Networks | Junos OS | 20.1 < 20.1R2-S2, 20.1R3-S1 | affected |
| Juniper Networks | Junos OS | 20.2 < 20.2R3-S2 | affected |
| Juniper Networks | Junos OS | 20.3 < 20.3R3-S1 | affected |
| Juniper Networks | Junos OS | 20.4 < 20.4R2-S1, 20.4R3 | affected |
| Juniper Networks | Junos OS | 21.1 < 21.1R2 | affected |
Weaknesses
- CWE-400: CWE-400 Uncontrolled Resource Consumption
- Denial of Service (DoS)
Workarounds
Disabling LLDP configuration will prevent this issue.
ADP Enrichment
CVE Program Container
Additional References
References
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