CVE-2021-0294 Information

Description

A vulnerability in Juniper Networks Junos OS which only affects the release 18.4R2-S5 where a function is inconsistently implemented on Juniper Networks Junos QFX5000 Series and EX4600 Series and if \storm-control enhanced\ is configured can lead to the enhanced storm control filter group not be installed. It will cause storm control not to work hence allowing an attacker to cause high CPU usage or packet loss issues by sending a large amount of broadcast or unknown unicast packets arriving the device. This issue affects Juniper Networks QFX5100 QFX5110 QFX5120 QFX5200 QFX5210 EX4600 and EX4650 and QFX5100 with QFX 5e Series image installed. QFX5130 and QFX5220 are not affected from this issue. This issue affects Juniper Networks Junos OS 18.4R2-S5 on QFX5000 Series and EX4600 Series. No other product or platform is affected by this vulnerability.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Reference

https://kb.juniper.net/JSA11196

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

LOW

Base Severity

5.3