Home/CVE/A stack buffer overflow vulnerability in the device control daemon (DCD) on Juniper Networks Junos OS allows a low privi
CVE

CVE-2020-1664

A stack buffer overflow vulnerability in the device control daemon (DCD) on Juniper Networks Junos OS allows a low privi

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.

HIGH · CVSS 7.8 EPSS 0.00048
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

1
juniper junosall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · sirt@juniper.net
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Oct 2020 · 09:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://kb.juniper.net/JSA11061Vendor Advisory
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