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CVE-2024-39518

HIGH
Published 2024-07-10T23:07:59.646Z
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CVSS Score

V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.002
probability
of exploitation in the wild

There is a 0.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.477
Higher than 47.7% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

A Heap-based Buffer Overflow vulnerability in the telemetry sensor process (sensord) of Juniper Networks Junos OS on MX240, MX480, MX960 platforms using MPC10E causes a steady increase in memory utilization, ultimately leading to a Denial of Service (DoS).

When the device is subscribed to a specific subscription on Junos Telemetry Interface, a slow memory leak occurs and eventually all resources are consumed and the device becomes unresponsive. A manual reboot of the Line Card will be required to restore the device to its normal functioning. 

This issue is only seen when telemetry subscription is active.

The Heap memory utilization can be monitored using the following command:
  > show system processes extensive

The following command can be used to monitor the memory utilization of the specific sensor
  > show system info | match sensord
PID NAME MEMORY PEAK MEMORY %CPU THREAD-COUNT CORE-AFFINITY UPTIME

1986 sensord 877.57MB 877.57MB 2 4 0,2-15 7-21:41:32

This issue affects Junos OS: 

* from 21.2R3-S5 before 21.2R3-S7, 
* from 21.4R3-S4 before 21.4R3-S6, 
* from 22.2R3 before 22.2R3-S4, 
* from 22.3R2 before 22.3R3-S2, 
* from 22.4R1 before 22.4R3, 
* from 23.2R1 before 23.2R2.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Juniper Networks

Junos OS

Affected Versions:

21.2R3-S5 21.4R3-S4 22.2R3 22.3R2 22.4R1 23.2R1
juniper

junos_os

Affected Versions:

21.2R3-S5 21.4R3-S4 22.2R3 22.3R2 22.4R1 23.2R1

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-9j54-8gmh-m2jr

Advisory Details

A Heap-based Buffer Overflow vulnerability in the telemetry sensor process (sensord) of Juniper Networks Junos OS on MX240, MX480, MX960 platforms using MPC10E causes a steady increase in memory utilization, ultimately leading to a Denial of Service (DoS). When the device is subscribed to a specific subscription on Junos Telemetry Interface, a slow memory leak occurs and eventually all resources are consumed and the device becomes unresponsive. A manual reboot of the Line Card will be required to restore the device to its normal functioning.  This issue is only seen when telemetry subscription is active. The Heap memory utilization can be monitored using the following command:   > show system processes extensive The following command can be used to monitor the memory utilization of the specific sensor   > show system info | match sensord PID NAME MEMORY PEAK MEMORY %CPU THREAD-COUNT CORE-AFFINITY UPTIME 1986 sensord 877.57MB 877.57MB 2 4 0,2-15 7-21:41:32 This issue affects Junos OS:  * from 21.2R3-S5 before 21.2R3-S7,  * from 21.4R3-S4 before 21.4R3-S6,  * from 22.2R3 before 22.2R3-S4,  * from 22.3R2 before 22.3R3-S2,  * from 22.4R1 before 22.4R3,  * from 23.2R1 before 23.2R2.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-39518
WEB https://supportportal.juniper.net/JSA82982

Advisory provided by GitHub Security Advisory Database. Published: July 11, 2024, Modified: July 11, 2024

References

https://supportportal.juniper.net/JSA82982
Published: 2024-07-10T23:07:59.646Z
Last Modified: 2024-08-02T04:26:15.900Z
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