Input validation error in Juniper Junos OS - CVE-2021-0222

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Main Vulnerability Database Vulnerabilities #VU49558

Input validation error in Juniper Junos OS - CVE-2021-0222

Published: January 15, 2021


Vulnerability identifier: #VU49558
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-0222
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Juniper Junos OS
Software vendor:
Juniper Networks, Inc.

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of certain protocol packets with invalid payloads. A remote attacker can pass specially crafted traffic to the application and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

Juniper Networks Junos OS:

  • 14.1X53 versions prior to 14.1X53-D53 on EX4300, QFX3500, QFX5100, EX4600;
  • 15.1 versions prior to 15.1R7-S6 on EX4300, QFX3500, QFX5100, EX4600;
  • 16.1 versions prior to 16.1R7-S7 on EX4300, QFX5100, EX4600;
  • 17.1 versions prior to 17.1R2-S11 on EX4300, QFX5100, EX4600;
  • 17.1 versions prior to 117.1R3-S2 on EX4300;
  • 17.2 versions prior to 17.2R1-S9 on EX4300;
  • 17.2 versions prior to 17.2R3-S3 on EX4300, QFX5100, EX4600, QFX5110, QFX5200;
  • 17.3 versions prior to 17.3R2-S5, 17.3R3-S7 on EX4300, QFX5100, EX4600, QFX5110, QFX5200;
  • 17.4 versions prior to 17.4R2-S9, 17.4R3 on EX4300, QFX5100, EX4600, QFX5110, QFX5200;
  • 18.1 versions prior to 18.1R3-S9 on EX4300, QFX5100, EX4600, QFX5110, QFX5200, QFX5210, EX2300, EX3400;
  • 18.2 versions prior to 18.2R2-S7 on EX4300;
  • 18.2 versions prior to 18.2R3-S3 on EX4300, QFX5100, EX4600, QFX5110, QFX5200, QFX5210, EX2300, EX3400;
  • 18.3 versions prior to 18.3R2-S3, on EX4300;
  • 18.3 versions prior to 18.3R1-S7, 18.3R3-S1 on EX4300, QFX5100, EX4600, QFX5110, QFX5200, QFX5210, QFX5120, EX4650, EX2300, EX3400;
  • 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3 on EX4300, QFX5100, EX4600, QFX5110, QFX5200, QFX5210, QFX5120, EX4650, EX2300, EX3400;
  • 19.1 versions prior to 19.1R1-S4, 19.1R2-S1, 19.1R3 on EX4300, QFX5100, EX4600, QFX5110, QFX5200, QFX5210, QFX5120, EX4650, EX2300, EX3400;
  • 19.2 versions prior to 19.2R1-S4, 19.2R2 on EX4300;
  • 19.2 versions prior to 19.2R1-S3, 19.2R2 on QFX5100, EX4600, QFX5110, QFX5200, QFX5210, QFX5120, EX4650, EX2300, EX3400;
  • 19.3 versions prior to 19.3R2-S1, 19.3R3 on EX4300;
  • 19.3 versions prior to 19.3R1-S1, 19.3R2, 19.3R3 on QFX5100, EX4600, QFX5110, QFX5200, QFX5210, QFX5120, EX4650, EX2300, EX3400;

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