CVE-2024-39518
Junos OS: MX240, MX480, MX960 platforms using MPC10E: Memory leak will be observed when subscribed to a specific subscription on Junos Telemetry Interface
Published Jul 10, 2024
CVSS 4.0 · 8.7 High
EPSS < 1%
KEV · Not listed
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.
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.
Affected Products
-
CVE record
-
NVD configurations
-
Red Hat packages
No data
-
OpenCVE enrichment
No data
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS | unaffected |
|
Configuration 1 [-]
| AND |
|
No data.
No data available yet.
Remediation
Vendor Solution
The following software releases have been updated to resolve this specific issue: 20.4R3-S10, 21.2R3-S7, 21.4R3-S6, 22.2R3-S3, 22.2R3-S4, 22.3R3-S2, 22.4R3, 23.2R2, 23.4R1, 23.4R2, and all subsequent releases.
Vendor Workaround
There are no known workarounds for this issue.
Tracking
Advisories
| Source | ID | Title |
|---|---|---|
 EUVD |
EUVD-2024-38044 | 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. |
Metrics
Attack Vector Network
Attack Complexity Low
Privileges Required None
Attack Requirements None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact High
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact Low
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.424% probability within 30 days)
Exploitation none
Automatable yes
Technical Impact partial
References
| Link | Providers |
|---|---|
| https://supportportal.juniper.net/JSA82982 |
|
History
No history.
