CVE-2017-2346

MS-MPC or MS-MIC crash when passing large fragmented traffic through an ALG

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An MS-MPC or MS-MIC Service PIC may crash when large fragmented packets are passed through an Application Layer Gateway (ALG). Repeated crashes of the Service PC can result in an extended denial of service condition. The issue can be seen only if NAT or stateful-firewall rules are configured with ALGs enabled. This issue was caused by the code change for PR 1182910 in Junos OS 14.1X55-D30, 14.1X55-D35, 14.2R7, 15.1R5, and 16.1R2. No other versions of Junos OS and no other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS on MX platforms running: 14.1X55 from 14.1X55-D30 to releases prior to 14.1X55-D35; 14.2R from 14.2R7 to releases prior to 14.2R7-S4, 14.2R8; 15.1R from 15.1R5 to releases prior to 15.1R5-S2, 15.1R6; 16.1R from 16.1R2 to releases prior to 16.1R3-S2, 16.1R4.

Un servicio MS-MPC o MS-MIC de PIC puede bloquearse cuando se pasan paquetes fragmentados grandes por medio de una Application Layer Gateway (ALG). Los bloqueos repetidos del equipo de servicio pueden resultar en una condición de denegación de servicio extendida. El problema se puede visualizar solamente si el NAT o las reglas del Cortafuegos con estado se configuran con la ALG habilitada. Este problema fue causado por el cambio de código para PR 1182910 en Junos OS versiones 14.1X55-D30, 14.1X55-D35, 14.2R7, 15.1R5 y 16.1R2. Ninguna otra versión del sistema operativo Junos y ningún otro producto o plataforma de Juniper Networks están afectados por este problema. Las versiones afectadas son Juniper Networks Junos OS en plataformas MX que se ejecutan: versión 14.1X55 de 14.1X55-D30 a versiones anteriores a 14.1X55-D35; versión 14.2R de 14.2R7 a las versiones anteriores a 14.2R7-S4, 14.2R8; versión 15.1R de 15.1R5 a las versiones anteriores a 15.1R5-S2, 15.1R6; versión 16.1R de 16.1R2 a las versiones anteriores a 16.1R3-S2, 16.1R4.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-12-01 CVE Reserved
2017-07-14 CVE Published
2023-05-24 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source
http://www.securitytracker.com/id/1038895	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.juniper.net/JSA10794	2019-10-09

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"	14.1x55 Search vendor "Juniper" for product "Junos" and version "14.1x55"	-	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.1x55 Search vendor "Juniper" for product "Junos" and version "14.1x55"	d30	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.2 Search vendor "Juniper" for product "Junos" and version "14.2"	r	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.2 Search vendor "Juniper" for product "Junos" and version "14.2"	r1	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.2 Search vendor "Juniper" for product "Junos" and version "14.2"	r2	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.2 Search vendor "Juniper" for product "Junos" and version "14.2"	r3	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.2 Search vendor "Juniper" for product "Junos" and version "14.2"	r4	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.2 Search vendor "Juniper" for product "Junos" and version "14.2"	r5	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.2 Search vendor "Juniper" for product "Junos" and version "14.2"	r6	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	14.2 Search vendor "Juniper" for product "Junos" and version "14.2"	r7	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	15.1 Search vendor "Juniper" for product "Junos" and version "15.1"	r	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	15.1 Search vendor "Juniper" for product "Junos" and version "15.1"	r1	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	15.1 Search vendor "Juniper" for product "Junos" and version "15.1"	r2	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	15.1 Search vendor "Juniper" for product "Junos" and version "15.1"	r3	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	15.1 Search vendor "Juniper" for product "Junos" and version "15.1"	r4	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	15.1 Search vendor "Juniper" for product "Junos" and version "15.1"	r5	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	15.1 Search vendor "Juniper" for product "Junos" and version "15.1"	r6	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	16.1 Search vendor "Juniper" for product "Junos" and version "16.1"	r	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	16.1 Search vendor "Juniper" for product "Junos" and version "16.1"	r1	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	16.1 Search vendor "Juniper" for product "Junos" and version "16.1"	r2	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	16.1 Search vendor "Juniper" for product "Junos" and version "16.1"	r3	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe
Juniper Search vendor "Juniper"	Junos Search vendor "Juniper" for product "Junos"	16.1 Search vendor "Juniper" for product "Junos" and version "16.1"	r4	Affected	in	Juniper Search vendor "Juniper"	Mx Search vendor "Juniper" for product "Mx"	-	-	Safe