CVE-2024-21599

Junos OS: MX Series: MPC3E memory leak with PTP configuration

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).

If an MX Series device receives PTP packets on an MPC3E that doesn't support PTP this causes a memory leak which will result in unpredictable behavior and ultimately in an MPC crash and restart.

To monitor for this issue, please use the following FPC vty level commands:

show heap
shows an increase in "LAN buffer" utilization and

show clksync ptp nbr-upd-info
shows non-zero "Pending PFEs" counter.

This issue affects Juniper Networks Junos OS on MX Series with MPC3E:

* All versions earlier than 20.4R3-S3;
* 21.1 versions earlier than 21.1R3-S4;
* 21.2 versions earlier than 21.2R3;
* 21.3 versions earlier than 21.3R2-S1, 21.3R3;
* 21.4 versions earlier than 21.4R2;
* 22.1 versions earlier than 22.1R2.

Una vulnerabilidad de liberación de memoria faltante después de la vida útil efectiva en Packet Forwarding Engine (PFE) de Juniper Networks Junos OS en la serie MX permite que un atacante adyacente no autenticado provoque una denegación de servicio (DoS). Si un dispositivo de la serie MX recibe paquetes PTP en un MPC3E que no admite PTP, esto provoca una pérdida de memoria que resultará en un comportamiento impredecible y, en última instancia, en un bloqueo y reinicio del MPC. Para monitorear este problema, utilice los siguientes comandos de nivel FPC vty: show heap muestra un aumento en la utilización del "LAN buffer" y show clksync ptp nbr-upd-info muestra un contador de "Pending PFEs" distinto de cero. Este problema afecta a Juniper Networks Junos OS en la serie MX con MPC3E: * Todas las versiones anteriores a 20.4R3-S3; * Versiones 21.1 anteriores a 21.1R3-S4; * Versiones 21.2 anteriores a 21.2R3; * Versiones 21.3 anteriores a 21.3R2-S1, 21.3R3; * Versiones 21.4 anteriores a 21.4R2; * Versiones 22.1 anteriores a 22.1R2.

*Credits: N/A

CVSS Scores

NISTv3.1 6.5

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:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-12-27 CVE Reserved
2024-01-12 CVE Published
2024-01-20 EPSS Updated
2024-08-01 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (2)

URL	Tag	Source
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L	Technical Description

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://supportportal.juniper.net/JSA75740	2024-01-19

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 Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r2-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r2-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r3-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r3-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r2-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r2-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r3-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r3-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.1 Search vendor "Juniper" for product "Junos" and version "21.1"		r3-s3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		r1-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		r2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		r2-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		r2-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.3 Search vendor "Juniper" for product "Junos" and version "21.3"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.3 Search vendor "Juniper" for product "Junos" and version "21.3"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.3 Search vendor "Juniper" for product "Junos" and version "21.3"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.3 Search vendor "Juniper" for product "Junos" and version "21.3"		r1-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.3 Search vendor "Juniper" for product "Junos" and version "21.3"		r2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		r1-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.1 Search vendor "Juniper" for product "Junos" and version "22.1"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.1 Search vendor "Juniper" for product "Junos" and version "22.1"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.1 Search vendor "Juniper" for product "Junos" and version "22.1"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.1 Search vendor "Juniper" for product "Junos" and version "22.1"		r1-s2		Affected