CVE-2020-1664

Summary

A stack buffer overflow vulnerability in the device control daemon (DCD) on Juniper Networks Junos OS allows a low privilege local user to create a Denial of Service (DoS) against the daemon or execute arbitrary code in the system with root privilege. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.2X75 versions prior to 18.2X75-D53, 18.2X75-D65; 18.3 versions prior to 18.3R2-S4, 18.3R3-S4; 18.4 versions prior to 18.4R2-S5, 18.4R3-S5; 19.1 versions prior to 19.1R3-S3; 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-S2, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2. Versions of Junos OS prior to 17.3 are unaffected by this vulnerability.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS17.3 < 17.3R3-S9affected
Juniper NetworksJunos OS17.4 < 17.4R2-S12, 17.4R3-S3affected
Juniper NetworksJunos OS18.1 < 18.1R3-S11affected
Juniper NetworksJunos OS18.2 < 18.2R3-S6affected
Juniper NetworksJunos OS18.2X75 < 18.2X75-D53, 18.2X75-D65affected
Juniper NetworksJunos OS18.3 < 18.3R2-S4, 18.3R3-S4affected
Juniper NetworksJunos OS18.4 < 18.4R2-S5, 18.4R3-S5affected
Juniper NetworksJunos OS19.1 < 19.1R3-S3affected
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-S2, 19.4R3affected
Juniper NetworksJunos OS20.1 < 20.1R1-S4, 20.1R2affected
Juniper NetworksJunos OS20.2 < 20.2R1-S1, 20.2R2affected

Weaknesses

  • CWE-121: CWE-121 Stack-based Buffer Overflow

Workarounds

Use access lists or firewall filters to limit CLI access to the device only from trusted, administrative networks or hosts. Limit access to the Junos OS CLI to only trusted system administrators.

ADP Enrichment

CVE Program Container

Additional References

References