CVE-2020-1665

Description

On Juniper Networks MX Series and EX9200 Series, in a certain condition the IPv6 Distributed Denial of Service (DDoS) protection might not take affect when it reaches the threshold condition. The DDoS protection allows the device to continue to function while it is under DDoS attack, protecting both the Routing Engine (RE) and the Flexible PIC Concentrator (FPC) during the DDoS attack. When this issue occurs, the RE and/or the FPC can become overwhelmed, which could disrupt network protocol operations and/or interrupt traffic. This issue does not affect IPv4 DDoS protection. This issue affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines). Please refer to https://kb.juniper.net/KB25385 for the list of Trio-based PFEs. This issue affects Juniper Networks Junos OS on MX series and EX9200 Series: 17.2 versions prior to 17.2R3-S4; 17.2X75 versions prior to 17.2X75-D102, 17.2X75-D110; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2; 18.2 versions prior to 18.2R2-S7, 18.2R3, 18.2R3-S3; 18.2X75 versions prior to 18.2X75-D30; 18.3 versions prior to 18.3R2-S4, 18.3R3-S2.

Risk Information

Base Score

5.3

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Score

Exploitation Probability

0.233

Associated Vulnerability

Vulnerability	OS Platform
Multiple Vulnerabilities are fixed in junos 17.2R3-S4	NCM
Multiple Vulnerabilities are fixed in junos 17.3R3-S8	NCM
Multiple Vulnerabilities are fixed in junos 17.4R3-S2	NCM
Multiple Vulnerabilities are fixed in junos 18.2R3-S3	NCM
Vulnerabilities CVE-2020-1665 are fixed in junos 18.3R3-S2.	NCM
Incomplete Filtering of Multiple Instances of Special Elements Vulnerability (CVE-2020-1665)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234