CVE-2024-21605

published 2024-04-12

CVE-2024-21605: An Exposure of Resource to Wrong Sphere vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX 300 Series allows an…

Priority P4 28 medium 6.5 CVSS 3.1

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

An Exposure of Resource to Wrong Sphere vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX 300 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).

Specific valid link-local traffic is not blocked on ports in STP blocked state but is instead sent to the control plane of the device. This leads to excessive resource consumption and in turn severe impact on all control and management protocols of the device.

This issue affects Juniper Networks Junos OS:
* 21.2 version 21.2R3-S3 and later versions earlier than 21.2R3-S6;
* 22.1 version 22.1R3 and later versions earlier than 22.1R3-S4;
* 22.2 version

22.2R2

and later versions earlier than 22.2R3-S2;
* 22.3 version

22.3R2

and later versions earlier than 22.3R3-S1;

* 22.4 versions earlier than 22.4R2-S2, 22.4R3;
* 23.2 versions earlier than 23.2R1-S1, 23.2R2.

This issue does not affect Juniper Networks Junos OS 21.4R1 and later versions of 21.4.

Affected

14 ranges

Vendor	Product	Version range	Fixed in
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper	srx_series	—	—
juniper_networks	junos_os	>= 21.2R3-S3 < 21.2R3-S6	21.2R3-S6
juniper_networks	junos_os	>= 22.1R3 < 22.1R3-S4	22.1R3-S4
juniper_networks	junos_os	>= 22.2R2 < 22.2R3-S2	22.2R3-S2
juniper_networks	junos_os	>= 22.3R2 < 22.3R3-S1	22.3R3-S1
juniper_networks	junos_os	>= 22.4 < 22.4R2-S2, 22.4R3	22.4R2-S2, 22.4R3
juniper_networks	junos_os	>= 23.2 < 23.2R1-S1, 23.2R2	23.2R1-S1, 23.2R2

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

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CWE-668