First published: Wed Jul 14 2021(Updated: )
An uncontrolled resource consumption vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series switches allows an attacker sending large amounts of legitimate traffic destined to the device to cause Interchassis Control Protocol (ICCP) interruptions, leading to an unstable control connection between the Multi-Chassis Link Aggregation Group (MC-LAG) nodes which can in turn lead to traffic loss. Continued receipt of this amount of traffic will create a sustained Denial of Service (DoS) condition. An indication that the system could be impacted by this issue is the following log message: "DDOS_PROTOCOL_VIOLATION_SET: Warning: Host-bound traffic for protocol/exception LOCALNH:aggregate exceeded its allowed bandwidth at fpc <fpc number> for <n> times, started at <timestamp>" This issue affects Juniper Networks Junos OS on QFX5000 Series and EX4600 Series: 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R1-S1, 20.4R2.
Credit: sirt@juniper.net
Affected Software | Affected Version | How to fix |
---|---|---|
Junos OS Evolved | =15.1 | |
Junos OS Evolved | =15.1-a1 | |
Junos OS Evolved | =15.1-f | |
Junos OS Evolved | =15.1-f1 | |
Junos OS Evolved | =15.1-f2 | |
Junos OS Evolved | =15.1-f2-s1 | |
Junos OS Evolved | =15.1-f2-s2 | |
Junos OS Evolved | =15.1-f2-s3 | |
Junos OS Evolved | =15.1-f2-s4 | |
Junos OS Evolved | =15.1-f3 | |
Junos OS Evolved | =15.1-f4 | |
Junos OS Evolved | =15.1-f5 | |
Junos OS Evolved | =15.1-f5-s7 | |
Junos OS Evolved | =15.1-f6 | |
Junos OS Evolved | =15.1-f6-s1 | |
Junos OS Evolved | =15.1-f6-s10 | |
Junos OS Evolved | =15.1-f6-s12 | |
Junos OS Evolved | =15.1-f6-s2 | |
Junos OS Evolved | =15.1-f6-s3 | |
Junos OS Evolved | =15.1-f6-s4 | |
Junos OS Evolved | =15.1-f6-s5 | |
Junos OS Evolved | =15.1-f6-s6 | |
Junos OS Evolved | =15.1-f6-s7 | |
Junos OS Evolved | =15.1-f6-s8 | |
Junos OS Evolved | =15.1-f6-s9 | |
Junos OS Evolved | =15.1-f7 | |
Junos OS Evolved | =15.1-r | |
Junos OS Evolved | =15.1-r1 | |
Junos OS Evolved | =15.1-r2 | |
Junos OS Evolved | =15.1-r3 | |
Junos OS Evolved | =15.1-r4 | |
Junos OS Evolved | =15.1-r4-s7 | |
Junos OS Evolved | =15.1-r4-s8 | |
Junos OS Evolved | =15.1-r4-s9 | |
Junos OS Evolved | =15.1-r5 | |
Junos OS Evolved | =15.1-r5-s1 | |
Junos OS Evolved | =15.1-r5-s3 | |
Junos OS Evolved | =15.1-r5-s5 | |
Junos OS Evolved | =15.1-r5-s6 | |
Junos OS Evolved | =15.1-r6 | |
Junos OS Evolved | =15.1-r6-s1 | |
Junos OS Evolved | =15.1-r6-s2 | |
Junos OS Evolved | =15.1-r6-s3 | |
Junos OS Evolved | =15.1-r6-s4 | |
Junos OS Evolved | =15.1-r6-s6 | |
Junos OS Evolved | =15.1-r7 | |
Junos OS Evolved | =15.1-r7-s1 | |
Junos OS Evolved | =15.1-r7-s2 | |
Junos OS Evolved | =15.1-r7-s3 | |
Junos OS Evolved | =15.1-r7-s4 | |
Junos OS Evolved | =15.1-r7-s5 | |
Junos OS Evolved | =15.1-r7-s6 | |
Junos OS Evolved | =15.1-r7-s7 | |
Junos OS Evolved | =15.1-r7-s8 | |
Junos OS Evolved | =17.3 | |
Junos OS Evolved | =17.3-r1 | |
Junos OS Evolved | =17.3-r1-s1 | |
Junos OS Evolved | =17.3-r1-s4 | |
Junos OS Evolved | =17.3-r2 | |
Junos OS Evolved | =17.3-r2-s1 | |
Junos OS Evolved | =17.3-r2-s2 | |
Junos OS Evolved | =17.3-r2-s3 | |
Junos OS Evolved | =17.3-r2-s4 | |
Junos OS Evolved | =17.3-r2-s5 | |
Junos OS Evolved | =17.3-r3 | |
Junos OS Evolved | =17.3-r3 | |
Junos OS Evolved | =17.3-r3-s1 | |
Junos OS Evolved | =17.3-r3-s10 | |
Junos OS Evolved | =17.3-r3-s2 | |
Junos OS Evolved | =17.3-r3-s3 | |
Junos OS Evolved | =17.3-r3-s4 | |
Junos OS Evolved | =17.3-r3-s5 | |
Junos OS Evolved | =17.3-r3-s6 | |
Junos OS Evolved | =17.3-r3-s7 | |
Junos OS Evolved | =17.3-r3-s8 | |
Junos OS Evolved | =17.3-r3-s9 | |
Junos OS Evolved | =17.4 | |
Junos OS Evolved | =17.4-r1 | |
Junos OS Evolved | =17.4-r1-s1 | |
Junos OS Evolved | =17.4-r1-s2 | |
Junos OS Evolved | =17.4-r1-s3 | |
Junos OS Evolved | =17.4-r1-s4 | |
Junos OS Evolved | =17.4-r1-s5 | |
Junos OS Evolved | =17.4-r1-s6 | |
Junos OS Evolved | =17.4-r1-s7 | |
Junos OS Evolved | =17.4-r2 | |
Junos OS Evolved | =17.4-r2-s1 | |
Junos OS Evolved | =17.4-r2-s10 | |
Junos OS Evolved | =17.4-r2-s11 | |
Junos OS Evolved | =17.4-r2-s12 | |
Junos OS Evolved | =17.4-r2-s2 | |
Junos OS Evolved | =17.4-r2-s3 | |
Junos OS Evolved | =17.4-r2-s4 | |
Junos OS Evolved | =17.4-r2-s5 | |
Junos OS Evolved | =17.4-r2-s6 | |
Junos OS Evolved | =17.4-r2-s7 | |
Junos OS Evolved | =17.4-r2-s8 | |
Junos OS Evolved | =17.4-r2-s9 | |
Junos OS Evolved | =17.4-r3 | |
Junos OS Evolved | =17.4-r3-s1 | |
Junos OS Evolved | =17.4-r3-s2 | |
Junos OS Evolved | =17.4-r3-s3 | |
Junos OS Evolved | =17.4-r3-s4 | |
Junos OS Evolved | =18.3 | |
Junos OS Evolved | =18.3-r1 | |
Junos OS Evolved | =18.3-r1-s1 | |
Junos OS Evolved | =18.3-r1-s2 | |
Junos OS Evolved | =18.3-r1-s3 | |
Junos OS Evolved | =18.3-r1-s4 | |
Junos OS Evolved | =18.3-r1-s5 | |
Junos OS Evolved | =18.3-r1-s6 | |
Junos OS Evolved | =18.3-r2 | |
Junos OS Evolved | =18.3-r2-s1 | |
Junos OS Evolved | =18.3-r2-s2 | |
Junos OS Evolved | =18.3-r2-s3 | |
Junos OS Evolved | =18.3-r2-s4 | |
Junos OS Evolved | =18.3-r3 | |
Junos OS Evolved | =18.3-r3-s1 | |
Junos OS Evolved | =18.3-r3-s2 | |
Junos OS Evolved | =18.3-r3-s3 | |
Junos OS Evolved | =18.3-r3-s4 | |
Junos OS Evolved | =18.4 | |
Junos OS Evolved | =18.4-r1 | |
Junos OS Evolved | =18.4-r1-s1 | |
Junos OS Evolved | =18.4-r1-s2 | |
Junos OS Evolved | =18.4-r1-s3 | |
Junos OS Evolved | =18.4-r1-s4 | |
Junos OS Evolved | =18.4-r1-s5 | |
Junos OS Evolved | =18.4-r1-s6 | |
Junos OS Evolved | =18.4-r1-s7 | |
Junos OS Evolved | =18.4-r2 | |
Junos OS Evolved | =18.4-r2-s1 | |
Junos OS Evolved | =18.4-r2-s2 | |
Junos OS Evolved | =18.4-r2-s3 | |
Junos OS Evolved | =18.4-r2-s4 | |
Junos OS Evolved | =18.4-r2-s5 | |
Junos OS Evolved | =18.4-r2-s6 | |
Junos OS Evolved | =18.4-r2-s7 | |
Junos OS Evolved | =18.4-r3 | |
Junos OS Evolved | =18.4-r3-s1 | |
Junos OS Evolved | =18.4-r3-s2 | |
Junos OS Evolved | =18.4-r3-s3 | |
Junos OS Evolved | =18.4-r3-s4 | |
Junos OS Evolved | =18.4-r3-s5 | |
Junos OS Evolved | =18.4-r3-s6 | |
Junos OS Evolved | =19.1 | |
Junos OS Evolved | =19.1-r1 | |
Junos OS Evolved | =19.1-r1-s1 | |
Junos OS Evolved | =19.1-r1-s2 | |
Junos OS Evolved | =19.1-r1-s3 | |
Junos OS Evolved | =19.1-r1-s4 | |
Junos OS Evolved | =19.1-r1-s5 | |
Junos OS Evolved | =19.1-r1-s6 | |
Junos OS Evolved | =19.1-r2 | |
Junos OS Evolved | =19.1-r2-s1 | |
Junos OS Evolved | =19.1-r2-s2 | |
Junos OS Evolved | =19.1-r3 | |
Junos OS Evolved | =19.1-r3-s1 | |
Junos OS Evolved | =19.1-r3-s2 | |
Junos OS Evolved | =19.1-r3-s3 | |
Junos OS Evolved | =19.1-r3-s4 | |
Junos OS Evolved | =19.2 | |
Junos OS Evolved | =19.2-r1 | |
Junos OS Evolved | =19.2-r1-s1 | |
Junos OS Evolved | =19.2-r1-s2 | |
Junos OS Evolved | =19.2-r1-s3 | |
Junos OS Evolved | =19.2-r1-s4 | |
Junos OS Evolved | =19.2-r1-s5 | |
Junos OS Evolved | =19.2-r2 | |
Junos OS Evolved | =19.2-r2-s1 | |
Junos OS Evolved | =19.2-r3 | |
Junos OS Evolved | =19.2-r3-s1 | |
Junos OS Evolved | =19.3 | |
Junos OS Evolved | =19.3-r1 | |
Junos OS Evolved | =19.3-r1-s1 | |
Junos OS Evolved | =19.3-r2 | |
Junos OS Evolved | =19.3-r2-s1 | |
Junos OS Evolved | =19.3-r2-s2 | |
Junos OS Evolved | =19.3-r2-s3 | |
Junos OS Evolved | =19.3-r2-s4 | |
Junos OS Evolved | =19.3-r2-s5 | |
Junos OS Evolved | =19.3-r3 | |
Junos OS Evolved | =19.3-r3-s1 | |
Junos OS Evolved | =19.4-r1 | |
Junos OS Evolved | =19.4-r1-s1 | |
Junos OS Evolved | =19.4-r1-s2 | |
Junos OS Evolved | =19.4-r1-s3 | |
Junos OS Evolved | =19.4-r2 | |
Junos OS Evolved | =19.4-r2-s1 | |
Junos OS Evolved | =19.4-r2-s2 | |
Junos OS Evolved | =19.4-r2-s3 | |
Junos OS Evolved | =19.4-r3 | |
Junos OS Evolved | =19.4-r3-s1 | |
Junos OS Evolved | =20.1-r1 | |
Junos OS Evolved | =20.1-r1-s1 | |
Junos OS Evolved | =20.1-r1-s2 | |
Junos OS Evolved | =20.1-r1-s3 | |
Junos OS Evolved | =20.1-r1-s4 | |
Junos OS Evolved | =20.1-r2 | |
Junos OS Evolved | =20.1-r2-s1 | |
Junos OS Evolved | =20.2-r1 | |
Junos OS Evolved | =20.2-r1-s1 | |
Junos OS Evolved | =20.2-r1-s2 | |
Junos OS Evolved | =20.2-r1-s3 | |
Junos OS Evolved | =20.2-r2 | |
Junos OS Evolved | =20.2-r2-s1 | |
Junos OS Evolved | =20.2-r2-s2 | |
Junos OS Evolved | =20.3-r1 | |
Junos OS Evolved | =20.3-r1-s1 | |
Junos OS Evolved | =20.4-r1 | |
Juniper EX Series | ||
Juniper EX4200 | ||
Juniper EX4300-24T | ||
Juniper EX4300-24P | ||
Juniper EX4300 | ||
Juniper EX4300-24T-S | ||
Juniper EX4300 | ||
Juniper EX4300-32F-S | ||
Juniper EX4300 | ||
Juniper EX4300-32F-S | ||
Juniper EX4300-48MP | ||
Juniper EX4300-48MP-S | ||
Juniper EX4300-48P | ||
Juniper EX4300-48P | ||
Juniper EX4300-48T-AFI | ||
Juniper EX4300-48TAFI | ||
Juniper EX4300-48TDC | ||
Juniper EX4300-48TDC-AFI | ||
Juniper EX4300-48T-S | ||
Juniper EX4300 | ||
Juniper EX4300 Multigigabit | ||
Juniper EX4300-48T-DC-AFI | ||
Juniper EX4300 | ||
Juniper EX4300 | ||
Juniper EX4300 | ||
Juniper EX4400-24X | ||
juniper ex4500-vc | ||
Juniper EX4500 | ||
Juniper EX Series | ||
Juniper EX4550 | ||
Juniper EX4550 | ||
Juniper EX4600 | ||
Juniper EX4600 | ||
Juniper EX4650 | ||
Juniper QFX5100 | ||
Juniper QFX5100 | ||
Juniper QFX5110 | ||
Juniper QFX5120 | ||
Juniper Networks QFX-Series | ||
Juniper QFX5200-32C | ||
Juniper QFX5200 | ||
Juniper QFX5200 | ||
Juniper QFX5210-64C | ||
Juniper QFX5210 | ||
Juniper QFX5220 |
The following software releases have been updated to resolve this specific issue: 15.1R7-S9, 17.3R3-S11, 17.4R2-S13, 17.4R3-S5, 18.1R3-S13, 18.2R3-S8, 18.3R3-S5, 18.4R2-S8, 18.4R3-S7, 19.1R3-S5, 19.2R1-S6, 19.2R3-S2, 19.3R2-S6, 19.3R3-S2, 19.4R1-S4, 19.4R2-S4, 19.4R3-S2, 20.1R2-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2, 20.4R1-S1, 20.4R2, 21.1R1, and all subsequent releases.
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CVE-2021-0285 has a medium severity rating due to its potential for causing service interruptions.
To fix CVE-2021-0285, update your Junos OS to a version that includes the necessary security patches.
CVE-2021-0285 affects specific versions of Junos OS, particularly those in the 15.1, 17.3, and 17.4 series.
An attacker can exploit CVE-2021-0285 to send a large volume of legitimate traffic to the device, disrupting Interchassis Control Protocol (ICCP) operations.
There currently are no documented workarounds for CVE-2021-0285, and applying security patches is strongly advised.