// For flags

CVE-2024-39549

Junos OS and Junos OS Evolved: Receipt of malformed BGP path attributes leads to a memory leak

Severity Score

8.7
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A Missing Release of Memory after Effective Lifetime vulnerability in the routing process daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a malformed BGP Path attribute update which allocates memory used to log the bad path attribute. This memory is not properly freed in all circumstances, leading to a Denial of Service (DoS).

Consumed memory can be freed by manually restarting Routing Protocol Daemon (rpd).

Memory utilization could be monitored by: 
user@host> show system memory or show system monitor memory status

This issue affects:

Junos OS:  * All versions before 21.2R3-S8, 
* from 21.4 before 21.4R3-S8,

* from 22.2 before 22.2R3-S4, 
* from 22.3 before 22.3R3-S3, 
* from 22.4 before 22.4R3-S3,
* from 23.2 before 23.2R2-S1, 
* from 23.4 before 23.4R1-S2, 23.4R2.


Junos OS Evolved:
* All versions before 21.2R3-S8-EVO,
* from 21.4 before 21.4R3-S8-EVO,
* from 22.2 before 22.2R3-S4-EVO,
* from 22.3 before 22.3R3-S3-EVO,
* from 22.4 before 22.4R3-S3-EVO,

* from 23.2 before 23.2R2-S1-EVO,
* from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.

*Credits: N/A
CVSS Scores
Attack Vector
Network
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
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-25 CVE Reserved
  • 2024-07-11 CVE Published
  • 2024-07-12 EPSS Updated
  • 2024-10-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-401: Missing Release of Memory after Effective Lifetime
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
Search vendor "Juniper Networks" for product "Junos OS"
< 21.2R3-S8
Search vendor "Juniper Networks" for product "Junos OS" and version " < 21.2R3-S8"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 21.4 < 21.4R3-S8
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.4 < 21.4R3-S8"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 22.2 < 22.2R3-S4
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.2 < 22.2R3-S4"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 22.3 < 22.3R3-S3
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R3-S3"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 22.4 < 22.4R3-S3
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R3-S3"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 23.2 < 23.2R2-S1
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R2-S1"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 23.4 < 23.4R1-S2
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.4 < 23.4R1-S2"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 23.4 < 23.4R2
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.4 < 23.4R2"
en
Affected
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 < 21.4R3-S8-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 21.4 < 21.4R3-S8-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 22.2 < 22.2R3-S4-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.2 < 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 < 22.3R3-S3-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.3 < 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 < 22.4R3-S3-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.4 < 22.4R3-S3-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 23.2 < 23.2R2-S1-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.2 < 23.2R2-S1-EVO"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS Evolved
Search vendor "Juniper Networks" for product "Junos OS Evolved"
>= 23.4 < 23.4R1-S2-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4 < 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 < 23.4R2-EVO
Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4 < 23.4R2-EVO"
en
Affected