high
7.5
Advisory Published
Updated

CVE-2020-1650: Junos OS: MX Series: Denial of Service vulnerability in MS-PIC component on MS-MIC or MS-MPC

First published: Fri Jul 17 2020(Updated: )

On Juniper Networks Junos MX Series with service card configured, receipt of a stream of specific packets may crash the MS-PIC component on MS-MIC or MS-MPC. By continuously sending these specific packets, an attacker can repeatedly bring down MS-PIC on MS-MIC/MS-MPC causing a prolonged Denial of Service. This issue affects MX Series devices using MS-PIC, MS-MIC or MS-MPC service cards with any service configured. This issue affects Juniper Networks Junos OS on MX Series: 17.2R2-S7; 17.3R3-S4, 17.3R3-S5; 17.4R2-S4 and the subsequent SRs (17.4R2-S5, 17.4R2-S6, etc.); 17.4R3; 18.1R3-S3, 18.1R3-S4, 18.1R3-S5, 18.1R3-S6, 18.1R3-S7, 18.1R3-S8; 18.2R3, 18.2R3-S1, 18.2R3-S2; 18.3R2 and the SRs based on 18.3R2; 18.4R2 and the SRs based on 18.4R2; 19.1R1 and the SRs based on 19.1R1; 19.2R1 and the SRs based on 19.2R1; 19.3R1 and the SRs based on 19.3R1.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper JUNOS=17.2-r2-s7
Juniper JUNOS=17.4-r2-s4
Juniper JUNOS=17.4-r2-s5
Juniper JUNOS=17.4-r2-s6
Juniper JUNOS=17.4-r2-s7
Juniper JUNOS=17.4-r2-s8
Juniper JUNOS=17.4-r2-s9
Juniper JUNOS=17.4-r3
Juniper JUNOS=18.1-r1
Juniper JUNOS=18.1-r2
Juniper JUNOS=18.1-r3-s3
Juniper JUNOS=18.1-r3-s4
Juniper JUNOS=18.1-r3-s5
Juniper JUNOS=18.1-r3-s6
Juniper JUNOS=18.1-r3-s7
Juniper JUNOS=18.1-r3-s8
Juniper JUNOS=18.2-r1
Juniper JUNOS=18.2-r1-s3
Juniper JUNOS=18.2-r1-s4
Juniper JUNOS=18.2-r2
Juniper JUNOS=18.2-r3
Juniper JUNOS=18.2-r3-s1
Juniper JUNOS=18.2-r3-s2
Juniper JUNOS=18.3-r2
Juniper JUNOS=18.3-r2-s1
Juniper JUNOS=18.3-r2-s2
Juniper JUNOS=18.3-r2-s3
Juniper JUNOS=18.4-r2
Juniper JUNOS=18.4-r2-s1
Juniper JUNOS=18.4-r2-s2
Juniper JUNOS=18.4-r2-s3
Juniper JUNOS=19.1-r1
Juniper JUNOS=19.1-r1-s1
Juniper JUNOS=19.1-r1-s2
Juniper JUNOS=19.1-r1-s3
Juniper JUNOS=19.2-r1
Juniper JUNOS=19.2-r1-s1
Juniper JUNOS=19.2-r1-s2
Juniper JUNOS=19.3-r1
Juniper JUNOS=19.3-r1-s1
Juniper Mx10
Juniper Mx10000
Juniper Mx10003
Juniper Mx104
Juniper Mx150
Juniper Mx2008
Juniper Mx2010
Juniper Mx2020
Juniper Mx204
Juniper Mx240
Juniper Mx40
Juniper Mx480
Juniper Mx5
Juniper Mx80
Juniper Mx960

Remedy

The following software releases have been updated to resolve this specific issue: 17.2R2-S8, 17.3R3-S6, 17.4R3-S1, 18.1R3-S9, 18.2R3-S3, 18.3R3, 18.4R3, 19.1R2, 19.2R2, 19.3R2, 19.4R1, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is CVE-2020-1650?

    CVE-2020-1650 is a vulnerability on Juniper Networks Junos MX Series that can cause a Denial of Service (DoS) by crashing the MS-PIC component on MS-MIC or MS-MPC.

  • What is the severity of CVE-2020-1650?

    The severity of CVE-2020-1650 is high with a CVSS score of 7.5.

  • Which software versions are affected by CVE-2020-1650?

    Juniper Junos versions 17.2-r2-s7 to 19.3-r1 are affected by CVE-2020-1650.

  • How can an attacker exploit CVE-2020-1650?

    By continuously sending specific packets, an attacker can exploit CVE-2020-1650 to bring down the MS-PIC on MS-MIC/MS-MPC.

  • Is my Juniper MX Series device vulnerable to CVE-2020-1650?

    Check your Juniper MX Series device against the affected software versions listed in Juniper's security advisory (link provided).

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