CVE-2020-1689

Summary

On Juniper Networks EX4300-MP Series, EX4600 Series and QFX5K Series deployed in a Virtual Chassis configuration, receipt of a stream of specific layer 2 frames can cause high CPU load, which could lead to traffic interruption. This issue does not occur when the device is deployed in Stand Alone configuration. The offending layer 2 frame packets can originate only from within the broadcast domain where the device is connected. This issue affects Juniper Networks Junos OS on EX4300-MP Series, EX4600 Series and QFX5K Series: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS17.3 < 17.3R3-S9affected
Juniper NetworksJunos OS17.4 < 17.4R2-S11, 17.4R3-S2, 17.4R3-S3affected
Juniper NetworksJunos OS18.1 < 18.1R3-S11affected
Juniper NetworksJunos OS18.2 < 18.2R3-S5affected
Juniper NetworksJunos OS18.3 < 18.3R2-S4, 18.3R3-S3affected
Juniper NetworksJunos OS18.4 < 18.4R2-S5, 18.4R3-S4affected
Juniper NetworksJunos OS19.1 < 19.1R3-S2affected
Juniper NetworksJunos OS19.2 < 19.2R1-S5, 19.2R3affected
Juniper NetworksJunos OS19.3 < 19.3R2-S4, 19.3R3affected
Juniper NetworksJunos OS19.4 < 19.4R1-S3, 19.4R2-S1, 19.4R3affected
Juniper NetworksJunos OS20.1 < 20.1R1-S3, 20.1R2affected

Weaknesses

  • CWE-400: CWE-400 Uncontrolled Resource Consumption

Workarounds

There are no viable workarounds for this issue.

ADP Enrichment

CVE Program Container

Additional References

References