CVE-2024-30388 Information

Description

An Improper Isolation or Compartmentalization vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series and EX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS).

If a specific malformed LACP packet is received by a QFX5000 Series or an EX4400 EX4100 or EX4650 Series device an LACP flap will occur resulting in traffic loss. This issue affects Junos OS on QFX5000 Series and on EX4400 EX4100 or EX4650 Series:

20.4 versions from 

20.4R3-S4

before 20.4R3-S8 21.2 versions from

21.2R3-S2

before 21.2R3-S6 21.4 versions from

21.4R2

before 21.4R3-S4

22.1 versions from

22.1R2

before 22.1R3-S3 22.2 versions before 22.2R3-S1 22.3 versions before 22.3R2-S2 22.3R3 22.4 versions before 22.4R2-S1 22.4R3.

CVSS Vector

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

Reference

http://supportportal.juniper.net/JSA79089 https://www.first.org/cvss/calculator/4.0#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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5