Security features bypass in Juniper Junos OS - CVE-2021-0294

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Main Vulnerability Database Vulnerabilities #VU54900

Security features bypass in Juniper Junos OS - CVE-2021-0294

Published: July 15, 2021


Vulnerability identifier: #VU54900
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/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-2021-0294
CWE-ID: CWE-254
Exploitation vector: Remote access
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 incorrect implementation of the storm-control enhanced feature. A remote attacker can cause high CPU usage or packet loss issues by sending a large amount of broadcast or unknown unicast packets arriving the device.

The vulnerability affects QFX5000 Series and EX4600 Series.


Remediation

Install updates from vendor's website.

External links