Home/CVE/On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic
CVE

CVE-2020-1671

On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic

On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash with a core dump if a malformed DHCPv6 packet is received, resulting with the restart of the daemon. This issue only affects DHCPv6, it does not affect DHCPv4. This issue affects: Juniper Networks Junos OS 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-D65.

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.

19.2 version 19.2R2 and later versions.

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-S3, 20.1R2.

This issue does not affect Juniper Networks Junos OS prior to 17.4R1.

HIGH · CVSS 7.5 EPSS 0.00389
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-125Out-of-bounds Read
▤

Affected Products & Versions

1
juniper junosall versions
▣

Scoring & Timeline

7.5
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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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/JSA11068Vendor Advisory
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