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CVE-2022-22203— Junos OS: EX4600 Series and QFX5000 Series: Receipt of specific traffic will lead to an fxpc process crash followed by an FPC reboot

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 存在安全漏洞，该漏洞源于攻击者可以通过物理局域网络对目标主机进行攻击，导致Junos OS的致命错误从而触发拒绝服务。

CVSS 6.5 · Medium EPSS 1.06% · P63
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I. Basic Information for CVE-2022-22203

Vulnerability Information
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Vulnerability Title
Junos OS: EX4600 Series and QFX5000 Series: Receipt of specific traffic will lead to an fxpc process crash followed by an FPC reboot
Source: CVE Program / CVE List V5
Vulnerability Description
An Incorrect Comparison vulnerability in PFE of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS). On QFX5000 Series, and EX4600 and EX4650 platforms, the fxpc process will crash followed by the FPC reboot upon receipt of a specific hostbound packet. Continued receipt of these specific packets will create a sustained Denial of Service (DoS) condition. This issue only affects Juniper Networks Junos OS 19.4 version 19.4R3-S4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的比较
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 安全漏洞
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 存在安全漏洞，该漏洞源于攻击者可以通过物理局域网络对目标主机进行攻击，导致Junos OS的致命错误从而触发拒绝服务。
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 ~ 19.4R3-S4 -

II. Public POCs for CVE-2022-22203

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III. Intelligence Information for CVE-2022-22203

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Vendor Advisories for CVE-2022-22203 (1)

Same Patch Batch · Juniper Networks · 2022-07-20 · 15 CVEs total

CVE-2022-22221 7.8 HIGH Junos OS: SRX and EX Series: Local privilege escalation flaw in "download" functionality
CVE-2022-22205 7.5 HIGH Junos OS: SRX Series: An FPC memory leak can occur in an APBR scenario
CVE-2022-22206 7.5 HIGH Junos OS: SRX series: The PFE will crash when specific traffic is scanned by Enhanced Web
CVE-2022-22207 7.5 HIGH Junos OS: MX Series with MPC11: In a GNF / node slicing scenario gathering AF interface st
CVE-2022-22209 7.5 HIGH Junos OS: RIB and PFEs can get out of sync due to a memory leak caused by interface flaps
CVE-2022-22212 7.5 HIGH Junos OS Evolved: A high rate of specific hostbound traffic will cause unexpected hostboun
CVE-2022-22202 6.5 MEDIUM Junos OS: PTX Series: FPCs may restart unexpectedly upon receipt of specific MPLS packets
CVE-2022-22210 6.5 MEDIUM Junos OS: QFX5000 Series and MX Series: An l2alm crash leading to an FPC crash can be obse
CVE-2022-22214 6.5 MEDIUM Junos OS and Junos OS Evolved: In an MPLS scenario upon receipt of a specific IPv6 packet
CVE-2022-22215 6.5 MEDIUM Junos OS and Junos OS Evolved: /var/run/<pid>.env files are potentially not deleted during
CVE-2022-22217 6.1 MEDIUM Junos OS: QFX10K Series: Denial of Service (DoS) upon receipt of crafted MLD packets on mu
CVE-2022-22213 5.9 MEDIUM Junos OS and Junos OS Evolved: Denial of Service (DoS) vulnerability in RPD upon receipt o
CVE-2022-22204 5.3 MEDIUM Junos OS: MX Series and SRX Series: When receiving a specific SIP packets stale call table
CVE-2022-22216 4.3 MEDIUM Junos OS: PTX Series and QFX10000 Series: 'Etherleak' memory disclosure in Ethernet paddin

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-697

V. Comments for CVE-2022-22203

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