Description
An Out-of-bounds Read vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a local, authenticated attacker with low privileges, to cause a Denial of Service (DoS).
If a low privileged user executes a specific CLI command, flowd which is responsible for traffic forwarding in SRX crashes and generates a core dump. This will cause temporary traffic interruption until the flowd process is restarted automatically. Continued execution of this command will lead to a sustained DoS.
This issue affects Juniper Networks Junos OS on SRX Series: All versions prior to 20.2R3-S7; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S4; 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S1; 22.2 versions prior to 22.2R3; 22.3 versions prior to 22.3R2; 22.4 versions prior to 22.4R1-S1, 22.4R2.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | >= unspecified, < 20.2R3-S7; >= 20.3, < 20.3*; >= 20.4, < 20.4R3-S6; >= 21.1, < 21.1R3-S5; >= 21.2, < 21.2R3-S4; >= 21.3, < 21.3R3-S4; >= 21.4, < 21.4R3-S3; >= 22.1, < 22.1R3-S1; >= 22.2, < 22.2R3; >= 22.3, < 22.3R2; >= 22.4, < 22.4R1-S1, 22.4R2 |
References
- https://supportportal.juniper.net/JSA71645Vendor Advisory
- https://supportportal.juniper.net/JSA71645Vendor Advisory
Timeline
- Published
- Jul 14, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified