// For flags

CVE-2024-39538

Junos OS Evolved: ACX7000 Series: When multicast traffic with a specific (S,G) is received evo-pfemand crashes

Severity Score

7.1
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A Buffer Copy without Checking Size of Input vulnerability in the PFE management daemon (evo-pfemand) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a 

Denial-of-Service (DoS).When multicast traffic with a specific, valid (S,G) is received, evo-pfemand crashes which leads to an outage of the affected FPC until it is manually recovered.


This issue affects Junos OS Evolved on ACX7000 Series:


* All versions before 21.2R3-S8-EVO,
* 21.4-EVO versions before 21.4R3-S7-EVO,
* 22.2-EVO versions before 22.2R3-S4-EVO,
* 22.3-EVO versions before 22.3R3-S3-EVO, 
* 22.4-EVO versions before 22.4R3-S2-EVO, 
* 23.2-EVO versions before 23.2R2-EVO, 
* 23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
None
None
Integrity
None
None
Availability
High
Low
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-25 CVE Reserved
  • 2024-07-11 CVE Published
  • 2024-07-12 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
< 21.2R3-S8-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " < 21.2R3-S8-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 21.4-EVO < 21.4R3-S7-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 21.4-EVO < 21.4R3-S7-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 22.2-EVO < 22.2R3-S4-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.2-EVO < 22.2R3-S4-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 22.3-EVO < 22.3R3-S3-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.3-EVO < 22.3R3-S3-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 22.4-EVO < 22.4R3-S2-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.4-EVO < 22.4R3-S2-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 23.2-EVO < 23.2R2-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.2-EVO < 23.2R2-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 23.4-EVO < 23.4R1-S2-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4-EVO < 23.4R1-S2-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 23.4-EVO < 23.4R2-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4-EVO < 23.4R2-EVO"
en
Affected