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CVE-2019-0046— Junos OS: EX4300 Series: Denial of Service upon receipt of large number of specific valid packets on management interface.

Quick assessment

Affected
Juniper Networks Junos OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Juniper Networks Junos OS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（EX4300 Series）中的pfe-chassisd Chassis Manager (CMLC)守护进程存在安全漏洞。攻击者可利用该漏洞造成拒绝服务。以下产品及版本受到影响：Juniper Networks Junos OS 16.1版本，17.1版本

AI Predicted 7.5 Difficulty: Easy EPSS 0.66% · P50
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I. Basic Information for CVE-2019-0046

Vulnerability Information
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Vulnerability Title
Junos OS: EX4300 Series: Denial of Service upon receipt of large number of specific valid packets on management interface.
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the pfe-chassisd Chassis Manager (CMLC) daemon of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) to the EX4300 when specific valid broadcast packets create a broadcast storm condition when received on the me0 interface of the EX4300 Series device. A reboot of the device is required to restore service. Continued receipt of these valid broadcast packets will create a sustained Denial of Service (DoS) against the device. Affected releases are Juniper Networks Junos OS: 16.1 versions above and including 16.1R1 prior to 16.1R7-S5; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R3; 17.3 versions prior to 17.3R3-S2; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R3; 18.2 versions prior to 18.2R2.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS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（EX4300 Series）中的pfe-chassisd Chassis Manager (CMLC)守护进程存在安全漏洞。攻击者可利用该漏洞造成拒绝服务。以下产品及版本受到影响：Juniper Networks Junos OS 16.1版本，17.1版本
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 16.1 versions above and including 16.1R1 prior to 16.1R7-S5 -

II. Public POCs for CVE-2019-0046

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III. Intelligence Information for CVE-2019-0046

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Vendor Advisories for CVE-2019-0046 (2)

Same Patch Batch · Juniper Networks · 2019-07-11 · 5 CVEs total

CVE-2019-0048 EX4300 Series: When a firewall filter is applied to a loopback interface, other firewall f
CVE-2019-0049 Junos OS: RPD process crashes when BGP peer restarts
CVE-2019-0052 SRX Series: srxpfe process crash while JSF/UTM module parses specific HTTP packets
CVE-2019-0053 Junos OS: Insufficient validation of environment variables in telnet client may lead to st

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-400

V. Comments for CVE-2019-0046

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