CVE-2021-0233
Junos OS: ACX500 Series, ACX4000 Series: Denial of Service due to FFEB crash while processing high rate of specific packets.
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A vulnerability in Juniper Networks Junos OS ACX500 Series, ACX4000 Series, may allow an attacker to cause a Denial of Service (DoS) by sending a high rate of specific packets to the device, resulting in a Forwarding Engine Board (FFEB) crash. Continued receipt of these packets will sustain the Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on ACX500 Series, ACX4000 Series: 17.4 versions prior to 17.4R3-S2.
Una vulnerabilidad en Juniper Networks Junos OS en las Series ACX500, ACX4000, puede permitir a un atacante causar una Denegación de Servicio (DoS) mediante el envío de una alta tasa de paquetes específicos hacia el dispositivo, resultando en un bloqueo de Forwarding Engine Board (FFEB). La recepción continua de estos paquetes mantendrá la condición de Denegación de Servicio (DoS). Este problema afecta a Juniper Networks Junos OS en ACX500 Series, ACX4000 Series: versiones 17.4 anteriores a 17.4R3-S2
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-10-27 CVE Reserved
- 2021-04-22 CVE Published
- 2024-01-06 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
- CWE-794: Incomplete Filtering of Multiple Instances of Special Elements
CAPEC
References (1)
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | - |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | - |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s1 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s1 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s2 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s2 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s3 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s3 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s4 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s4 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s5 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s5 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s6 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s6 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s7 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r1-s7 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s1 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s1 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s10 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s10 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s11 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s11 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s2 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s2 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s3 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s3 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s4 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s4 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s5 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s5 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s6 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s6 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s7 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s7 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s8 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s8 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s9 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r2-s9 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r3 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r3 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r3-s1 |
Affected
| in | Juniper Search vendor "Juniper" | Acx4000 Search vendor "Juniper" for product "Acx4000" | - | - |
Safe
|
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.4 Search vendor "Juniper" for product "Junos" and version "17.4" | r3-s1 |
Affected
| in | Juniper Search vendor "Juniper" | Acx500 Search vendor "Juniper" for product "Acx500" | - | - |
Safe
|