CVE-2024-30388

published 2024-04-12

CVE-2024-30388: An Improper Isolation or Compartmentalization vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series and EX Series…

Priority P4 31 medium 6.5 CVSS 3.1

AV A AC L PR N UI N S U C N I N A H

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.

Affected

17 ranges

Vendor	Product	Version range	Fixed in
juniper	ex_series	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper	qfx_series	—	—
juniper_networks	junos_os	>= 20.4R3-S4 < 20.4R3-S8	20.4R3-S8
juniper_networks	junos_os	>= 21.2R3-S2 < 21.2R3-S6	21.2R3-S6
juniper_networks	junos_os	>= 21.4R2 < 21.4R3-S4	21.4R3-S4
juniper_networks	junos_os	>= 22.1R2 < 22.1R3-S3	22.1R3-S3
juniper_networks	junos_os	>= 22.2 < 22.2R3-S1	22.2R3-S1
juniper_networks	junos_os	>= 22.3 < 22.3R2-S2, 22.3R3	22.3R2-S2, 22.3R3
juniper_networks	junos_os	>= 22.4 < 22.4R2-S1, 22.4R3	22.4R2-S1, 22.4R3

CVSS provenance

nvd v3.1 6.5 MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v4.0 7.1 HIGH CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-653