CVE-2021-0229 (GCVE-0-2021-0229)

Vulnerability from cvelistv5 – Published: 2021-04-22 19:36 – Updated: 2024-09-16 18:08
VLAI?
Title
Junos OS: Receipt of specific packets could lead to Denial of Service in MQTT Server
Summary
An uncontrolled resource consumption vulnerability in Message Queue Telemetry Transport (MQTT) server of Juniper Networks Junos OS allows an attacker to cause MQTT server to crash and restart leading to a Denial of Service (DoS) by sending a stream of specific packets. A Juniper Extension Toolkit (JET) application designed with a listening port uses the Message Queue Telemetry Transport (MQTT) protocol to connect to a mosquitto broker that is running on Junos OS to subscribe for events. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 16.1R1 and later versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 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 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 16.1R1.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 16.1R1 , < 16.1* (custom)
Affected: 17.3 , < 17.3R3-S11 (custom)
Affected: 17.4 , < 17.4R2-S13, 17.4R3-S4 (custom)
Affected: 18.1 , < 18.1R3-S12 (custom)
Affected: 18.2 , < 18.2R2-S8, 18.2R3-S7 (custom)
Affected: 18.3 , < 18.3R3-S4 (custom)
Affected: 18.4 , < 18.4R1-S8, 18.4R2-S7, 18.4R3-S7 (custom)
Affected: 19.1 , < 19.1R3-S5 (custom)
Affected: 19.2 , < 19.2R1-S6, 19.2R3-S2 (custom)
Affected: 19.3 , < 19.3R3-S2 (custom)
Affected: 19.4 , < 19.4R2-S4, 19.4R3-S2 (custom)
Affected: 20.1 , < 20.1R2-S1, 20.1R3 (custom)
Affected: 20.2 , < 20.2R2-S2, 20.2R3 (custom)
Affected: 20.3 , < 20.3R1-S1, 20.3R2 (custom)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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