Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS Evolved | < 21.2R3-S7-EVO; >= 21.3, < 21.3R3-S5-EVO ; >= 21.4, < 21.4R3-S5-EVO; >= 22.1, < 22.1R3-S4-EVO; >= 22.2, < 22.2R3-S3-EVO ; >= 22.3, < 22.3R3-EVO; >= 22.4, < 22.4R2-EVO, 22.4R3-EVO |
References
- https://supportportal.juniper.net/JSA75753Vendor Advisory
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NThird Party Advisory
- https://supportportal.juniper.net/JSA75753Vendor Advisory
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NThird Party Advisory
Timeline
- Published
- Jan 12, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified