Input validation error in Juniper Junos OS - CVE-2019-0046

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Main Vulnerability Database Vulnerabilities #VU19143

Input validation error in Juniper Junos OS - CVE-2019-0046

Published: July 11, 2019


Vulnerability identifier: #VU19143
CSH Severity: Medium
CVSS v4.0: 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-2019-0046
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS

Detailed vulnerability description

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

The vulnerability exists in the pfe-chassisd Chassis Manager (CMLC) daemon when specific valid broadcast packets create a broadcast storm condition when received on the me0 interface. An attacker can perform a denial of service attack on the affected device.

This issue only affects the EX4300 switch.

How to mitigate CVE-2019-0046

Install updates from vendor's website.

Sources