// For flags

CVE-2022-22195

Junos OS Evolved: Specific packets reaching the RE lead to a counter overflow and eventually a crash

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

An Improper Update of Reference Count vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to trigger a counter overflow, eventually causing a Denial of Service (DoS). This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S1-EVO; 21.1 versions prior to 21.1R3-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO. This issue does not affect Juniper Networks Junos OS.

Una vulnerabilidad de ActualizaciĆ³n Inapropiada del Recuento de Referencias en el kernel de Juniper Networks Junos OS Evolved permite a un atacante no autenticado y basado en la red desencadenar un desbordamiento del contador, causando eventualmente una DenegaciĆ³n de Servicio (DoS). Este problema afecta a Juniper Networks Junos OS Evolved: Todas las versiones anteriores a 20.4R3-S1-EVO; versiones 21.1 anteriores a 21.1R3-EVO; versiones 21.2 anteriores a 21.2R3-EVO; versiones 21.3 anteriores a 21.3R2-EVO. Este problema no afecta a Juniper Networks Junos OS

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-12-21 CVE Reserved
  • 2022-04-14 CVE Published
  • 2023-11-05 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-911: Improper Update of Reference Count
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://kb.juniper.net/JSA69508 2022-04-21
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 Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
< 20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version " < 20.4"
-
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version "20.4"
r1
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version "20.4"
r1-s1
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version "20.4"
r1-s2
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version "20.4"
r2
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version "20.4"
r2-s1
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version "20.4"
r2-s2
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version "20.4"
r2-s3
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
20.4
Search vendor "Juniper" for product "Junos Os Evolved" and version "20.4"
r3
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
21.1
Search vendor "Juniper" for product "Junos Os Evolved" and version "21.1"
r1
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
21.1
Search vendor "Juniper" for product "Junos Os Evolved" and version "21.1"
r1-s1
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
21.1
Search vendor "Juniper" for product "Junos Os Evolved" and version "21.1"
r2
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
21.2
Search vendor "Juniper" for product "Junos Os Evolved" and version "21.2"
r1
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
21.2
Search vendor "Juniper" for product "Junos Os Evolved" and version "21.2"
r1-s1
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
21.2
Search vendor "Juniper" for product "Junos Os Evolved" and version "21.2"
r2
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
21.3
Search vendor "Juniper" for product "Junos Os Evolved" and version "21.3"
r1
Affected
Juniper
Search vendor "Juniper"
Junos Os Evolved
Search vendor "Juniper" for product "Junos Os Evolved"
21.3
Search vendor "Juniper" for product "Junos Os Evolved" and version "21.3"
r1-s1
Affected