An Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

On all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.





This issue affects:

Juniper Networks Junos OS Evolved



* All versions earlier than 21.2R3-S7-EVO;
* 21.3 versions earlier than 21.3R3-S5-EVO ;
* 21.4 versions earlier than 21.4R3-S5-EVO;
* 22.1 versions earlier than 22.1R3-S4-EVO;
* 22.2 versions earlier than 22.2R3-S3-EVO ;
* 22.3 versions earlier than 22.3R3-EVO;
* 22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.






Advisories
Source ID Title
EUVD EUVD EUVD-2024-19260 An Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). On all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS Evolved * All versions earlier than 21.2R3-S7-EVO; * 21.3 versions earlier than 21.3R3-S5-EVO ; * 21.4 versions earlier than 21.4R3-S5-EVO; * 22.1 versions earlier than 22.1R3-S4-EVO; * 22.2 versions earlier than 22.2R3-S3-EVO ; * 22.3 versions earlier than 22.3R3-EVO; * 22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.
Fixes

Solution

The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 21.2R3-S7-EVO, 21.3R3-S5-EVO, 21.4R3-S5-EVO, 22.1R3-S4-EVO, 22.2R3-S3-EVO, 22.3R3-EVO, 22.4R2-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.


Workaround

In order to prevent this issue, following firewall filter needs to be added for each OFP port. [ firewall family inet filter mgmt-filter term discard_ofp from protocol tcp ] [ firewall family inet filter mgmt-filter term discard_ofp from destination-port <ofp_port_1> ] [ firewall family inet filter mgmt-filter term discard_ofp from destination-port <ofp_port_2> ] [ firewall family inet filter mgmt-filter term discard_ofp then discard ] [ firewall family inet filter mgmt-filter term 2 then accept ] [ interfaces re0:mgmt-0 unit 0 family inet filter input mgmt-filter ] [ interfaces re1:mgmt-0 unit 0 family inet filter input mgmt-filter ]

History

Tue, 17 Jun 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published:

Updated: 2025-06-17T21:09:20.546Z

Reserved: 2023-12-27T19:38:25.709Z

Link: CVE-2024-21612

cve-icon Vulnrichment

Updated: 2024-08-01T22:27:36.014Z

cve-icon NVD

Status : Modified

Published: 2024-01-12T01:15:49.457

Modified: 2024-11-21T08:54:43.200

Link: CVE-2024-21612

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.