Description
A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).
On all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition.
This issue affects: Junos OS:
* all versions before 21.2R3-S6,
* from 21.3 before 21.3R3-S5,
* from 21.4 before 21.4R3-S5,
* from 22.1 before 22.1R3-S3,
* from 22.2 before 22.2R3-S1,
* from 22.3 before 22.3R2-S2, 22.3R3,
* from 22.4 before 22.4R2-S1, 22.4R3.
Metrics
CVSS 3.1 7.5/10
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 | < 21.2R3-S6; >= 21.3, < 21.3R3-S5; >= 21.4, < 21.4R3-S5; >= 22.1, < 22.1R3-S3; >= 22.2, < 22.2R3-S1; >= 22.3, < 22.3R2-S2, 22.3R3; >= 22.4, < 22.4R2-S1, 22.4R3 |
| juniper | junos_os | < 21.2r3-s6; >= 21.3, < 21.3r3-s5; >= 21.4, < 21.4r3-s5; >= 22.1, < 21.1r3-s3; >= 22.2, < 22.2r3-s1; >= 22.3, < 22.3r2-s2; >= 22.3, < 22.3r3; >= 22.4, < 22.4-r2-s2; >= 22.4, < 22.4r3 |
References
- https://supportportal.juniper.net/JSA79092Vendor 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:LVendor Advisory
- https://supportportal.juniper.net/JSA79092Vendor 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:LVendor Advisory
Timeline
- Published
- Apr 12, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed