CVE-2023-22396

Junos OS: Receipt of crafted TCP packets destined to the device results in MBUF leak leading to a Denial of Service (DoS)

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An Uncontrolled Resource Consumption vulnerability in TCP processing on the Routing Engine (RE) of Juniper Networks Junos OS allows an unauthenticated network-based attacker to send crafted TCP packets destined to the device, resulting in an MBUF leak that ultimately leads to a Denial of Service (DoS). The system does not recover automatically and must be manually restarted to restore service. This issue occurs when crafted TCP packets are sent directly to a configured IPv4 or IPv6 interface on the device. Transit traffic will not trigger this issue. MBUF usage can be monitored through the use of the 'show system buffers' command. For example: user@junos> show system buffers | refresh 5 4054/566/4620 mbufs in use (current/cache/total) ... 4089/531/4620 mbufs in use (current/cache/total) ... 4151/589/4740 mbufs in use (current/cache/total) ... 4213/527/4740 mbufs in use (current/cache/total) This issue affects Juniper Networks Junos OS: 12.3 version 12.3R12-S19 and later versions; 15.1 version 15.1R7-S10 and later versions; 17.3 version 17.3R3-S12 and later versions; 18.4 version 18.4R3-S9 and later versions; 19.1 version 19.1R3-S7 and later versions; 19.2 version 19.2R3-S3 and later versions; 19.3 version 19.3R2-S7, 19.3R3-S3 and later versions prior to 19.3R3-S7; 19.4 version 19.4R2-S7, 19.4R3-S5 and later versions prior to 19.4R3-S10; 20.1 version 20.1R3-S1 and later versions; 20.2 version 20.2R3-S2 and later versions prior to 20.2R3-S6; 20.3 version 20.3R3-S1 and later versions prior to 20.3R3-S6; 20.4 version 20.4R2-S2, 20.4R3 and later versions prior to 20.4R3-S5; 21.1 version 21.1R2 and later versions prior to 21.1R3-S4; 21.2 version 21.2R1-S1, 21.2R2 and later versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S2; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2-S1, 22.1R3; 22.2 versions prior to 22.2R1-S2, 22.2R2; 22.3 versions prior to 22.3R1-S1, 22.3R2.

Una vulnerabilidad de consumo de recursos no controlado en el procesamiento TCP en el motor de enrutamiento (RE) de Juniper Networks Junos OS permite que un atacante basado en red no autenticado envíe paquetes TCP manipulados destinados al dispositivo, lo que resulta en una fuga de MBUF que finalmente conduce a una denegación de servicio (DoS). El sistema no se recupera automáticamente y debe reiniciarse manualmente para restaurar el servicio. Este problema ocurre cuando los paquetes TCP manipulados se envían directamente a una interfaz IPv4 o IPv6 configurada en el dispositivo. El tráfico de tránsito no provocará este problema. El uso de MBUF se puede monitorear mediante el uso del comando 'show system búfers'. Por ejemplo: user@junos> show system búfers | refresh5 4054/566/4620 mbufs en uso (actual/caché/total) ... 4089/531/4620 mbufs en uso (actual/caché/total) ... 4151/589/4740 mbufs en uso (actual/caché /total) ... 4213/527/4740 mbufs en uso (actual/caché/total) Este problema afecta a Juniper Networks Junos OS: 12.3 versión 12.3R12-S19 y versiones posteriores; 15.1 versión 15.1R7-S10 y versiones posteriores; 17.3 versión 17.3R3-S12 y versiones posteriores; 18.4 versión 18.4R3-S9 y versiones posteriores; 19.1 versión 19.1R3-S7 y versiones posteriores; 19.2 versión 19.2R3-S3 y versiones posteriores; 19.3 versión 19.3R2-S7, 19.3R3-S3 y versiones posteriores anteriores a 19.3R3-S7; 19.4 versión 19.4R2-S7, 19.4R3-S5 y versiones posteriores anteriores a 19.4R3-S10; 20.1 versión 20.1R3-S1 y versiones posteriores; 20.2 versión 20.2R3-S2 y versiones posteriores anteriores a 20.2R3-S6; 20.3 versión 20.3R3-S1 y versiones posteriores anteriores a 20.3R3-S6; 20.4 versión 20.4R2-S2, 20.4R3 y versiones posteriores anteriores a 20.4R3-S5; 21.1 versión 21.1R2 y versiones posteriores anteriores a 21.1R3-S4; 21.2 versión 21.2R1-S1, 21.2R2 y versiones posteriores anteriores a 21.2R3-S3; Versiones 21.3 anteriores a 21.3R3-S2; Versiones 21.4 anteriores a 21.4R3; Versiones 22.1 anteriores a 22.1R2-S1, 22.1R3; Versiones 22.2 anteriores a 22.2R1-S2, 22.2R2; Versiones 22.3 anteriores a 22.3R1-S1, 22.3R2.

*Credits: N/A

CVSS Scores

Juniper Networksv3.1 7.5

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:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-12-27 CVE Reserved
2023-01-12 CVE Published
2024-08-02 CVE Updated
2024-08-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.juniper.net/JSA70192	2023-01-24

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"				12.3 Search vendor "Juniper" for product "Junos" and version "12.3"		r12-s19		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				12.3 Search vendor "Juniper" for product "Junos" and version "12.3"		r12-s20		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				15.1 Search vendor "Juniper" for product "Junos" and version "15.1"		r7-s10		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				15.1 Search vendor "Juniper" for product "Junos" and version "15.1"		r7-s11		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				15.1 Search vendor "Juniper" for product "Junos" and version "15.1"		r7-s12		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				17.3 Search vendor "Juniper" for product "Junos" and version "17.3"		r3-s12		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				18.4 Search vendor "Juniper" for product "Junos" and version "18.4"		r3-s10		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				18.4 Search vendor "Juniper" for product "Junos" and version "18.4"		r3-s11		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				18.4 Search vendor "Juniper" for product "Junos" and version "18.4"		r3-s9		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.1 Search vendor "Juniper" for product "Junos" and version "19.1"		r3-s7		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.1 Search vendor "Juniper" for product "Junos" and version "19.1"		r3-s8		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.2 Search vendor "Juniper" for product "Junos" and version "19.2"		r3-s3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.2 Search vendor "Juniper" for product "Junos" and version "19.2"		r3-s4		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.2 Search vendor "Juniper" for product "Junos" and version "19.2"		r3-s5		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.3 Search vendor "Juniper" for product "Junos" and version "19.3"		r2-s7		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.3 Search vendor "Juniper" for product "Junos" and version "19.3"		r3-s3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.3 Search vendor "Juniper" for product "Junos" and version "19.3"		r3-s4		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.3 Search vendor "Juniper" for product "Junos" and version "19.3"		r3-s5		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.3 Search vendor "Juniper" for product "Junos" and version "19.3"		r3-s6		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.4 Search vendor "Juniper" for product "Junos" and version "19.4"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.4 Search vendor "Juniper" for product "Junos" and version "19.4"		r2-s7		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.4 Search vendor "Juniper" for product "Junos" and version "19.4"		r3-s5		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.4 Search vendor "Juniper" for product "Junos" and version "19.4"		r3-s6		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.4 Search vendor "Juniper" for product "Junos" and version "19.4"		r3-s7		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.4 Search vendor "Juniper" for product "Junos" and version "19.4"		r3-s8		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				19.4 Search vendor "Juniper" for product "Junos" and version "19.4"		r3-s9		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.1 Search vendor "Juniper" for product "Junos" and version "20.1"		r3-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.1 Search vendor "Juniper" for product "Junos" and version "20.1"		r3-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.1 Search vendor "Juniper" for product "Junos" and version "20.1"		r3-s3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.1 Search vendor "Juniper" for product "Junos" and version "20.1"		r3-s4		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.2 Search vendor "Juniper" for product "Junos" and version "20.2"		r3-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.2 Search vendor "Juniper" for product "Junos" and version "20.2"		r3-s3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.2 Search vendor "Juniper" for product "Junos" and version "20.2"		r3-s4		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.2 Search vendor "Juniper" for product "Junos" and version "20.2"		r3-s5		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.3 Search vendor "Juniper" for product "Junos" and version "20.3"		r3-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.3 Search vendor "Juniper" for product "Junos" and version "20.3"		r3-s2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.3 Search vendor "Juniper" for product "Junos" and version "20.3"		r3-s3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.3 Search vendor "Juniper" for product "Junos" and version "20.3"		r3-s4		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				20.3 Search vendor "Juniper" for product "Junos" and version "20.3"		r3-s5		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"				20.4 Search vendor "Juniper" for product "Junos" and version "20.4"		r3-s3		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-s4		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-s5		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"		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"		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"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		r3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.2 Search vendor "Juniper" for product "Junos" and version "21.2"		r3-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"		r3-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"				21.3 Search vendor "Juniper" for product "Junos" and version "21.3"		r2-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"		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"		r3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.3 Search vendor "Juniper" for product "Junos" and version "21.3"		r3-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"		-		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"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		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"		r2-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"		r2-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"		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
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.1 Search vendor "Juniper" for product "Junos" and version "22.1"		r2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.1 Search vendor "Juniper" for product "Junos" and version "22.1"		r3		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.2 Search vendor "Juniper" for product "Junos" and version "22.2"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.2 Search vendor "Juniper" for product "Junos" and version "22.2"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.2 Search vendor "Juniper" for product "Junos" and version "22.2"		r2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.3 Search vendor "Juniper" for product "Junos" and version "22.3"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.3 Search vendor "Juniper" for product "Junos" and version "22.3"		r2		Affected