CVE-2023-36850— Junos OS: MX Series: An MPC will crash upon receipt of a malformed CFM packet.
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I. Basic Information for CVE-2023-36850
Vulnerability Information
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Vulnerability Title
Junos OS: MX Series: An MPC will crash upon receipt of a malformed CFM packet.
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Connectivity Fault Management(CFM) module of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600) allows an adjacent attacker on the local broadcast domain to cause a Denial of Service(DoS). Upon receiving a malformed CFM packet, the MPC crashes. Continued receipt of these packets causes a sustained denial of service. This issue can only be triggered when CFM hasn't been configured. This issue affects: Juniper Networks Junos OS All versions prior to 19.1R3-S10 on MX Series; 19.2 versions prior to 19.2R3-S7 on MX Series; 19.3 versions prior to 19.3R3-S8 on MX Series; 19.4 versions prior to 19.4R3-S12 on MX Series; 20.1 version 20.1R1 and later versions on MX Series; 20.2 versions prior to 20.2R3-S7 on MX Series; 20.3 version 20.3R1 and later versions on MX Series; 20.4 versions prior to 20.4R3-S7 on MX Series; 21.1 versions prior to 21.1R3-S5 on MX Series; 21.2 versions prior to 21.2R3-S4 on MX Series; 21.3 versions prior to 21.3R3-S4 on MX Series; 21.4 versions prior to 21.4R3-S3 on MX Series; 22.1 versions prior to 22.1R3-S2 on MX Series; 22.2 versions prior to 22.2R3 on MX Series; 22.3 versions prior to 22.3R2, 22.3R3 on MX Series; 22.4 versions prior to 22.4R2 on MX Series.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1285
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS MX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS MX是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Networks Junos OS MX存在安全漏洞，该漏洞源于连接故障管理(CFM)模块中存在输入验证不当问题。攻击者可利用该漏洞造成拒绝服务（DoS）。受影响的产品和版本：Juniper Networks Junos OS MX系列19.1R3-S10 之前的版本；19.2R3-S7
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Juniper Networks | Junos OS | unspecified ~ 19.1R3-S10 | - |
II. Public POCs for CVE-2023-36850
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|---|
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Same Patch Batch · Juniper Networks · 2023-07-14 · 12 CVEs total
| CVE-2023-36835 | 7.5 HIGH | Junos OS: QFX10000 Series: All traffic will be dropped after a specific valid IP packet ha |
| CVE-2023-28985 | 7.5 HIGH | SRX Series and MX Series: An FPC core is observed when IDP is enabled on the device and a |
| CVE-2023-36832 | 7.5 HIGH | Junos OS: MX Series: PFE crash upon receipt of specific packet destined to an AMS interfac |
| CVE-2023-36831 | 7.5 HIGH | Junos OS: SRX Series: jbuf memory leak when SSL Proxy and UTM Web-Filtering is applied |
| CVE-2023-36849 | 6.5 MEDIUM | Junos OS and Junos OS Evolved: The l2cpd will crash when a malformed LLDP packet is receiv |
| CVE-2023-36848 | 6.5 MEDIUM | Junos OS: MX Series: The FPC will crash on receiving a malformed CFM packet |
| CVE-2023-36834 | 6.5 MEDIUM | Junos OS: SRX 4600 and SRX 5000 Series: The receipt of specific genuine packets by SRXes c |
| CVE-2023-36833 | 6.5 MEDIUM | Junos OS Evolved: PTX10001-36MR, and PTX10004, PTX10008, PTX10016 with LC1201/1202: The af |
| CVE-2023-36840 | 5.5 MEDIUM | Junos OS and Junos OS Evolved: An rpd crash occurs when a specific L2VPN command is run |
| CVE-2023-36838 | 5.5 MEDIUM | Junos OS: SRX Series: A flowd core occurs when running a low privileged CLI command |
| CVE-2023-36836 | 4.7 MEDIUM | Junos OS and Junos OS Evolved: In a MoFRR scenario an rpd core may be observed when a low |
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