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CVE-2022-22217— Junos OS: QFX10K Series: Denial of Service (DoS) upon receipt of crafted MLD packets on multi-homing ESI in VXLAN

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。Forward是一个应用软件。图书馆对NVIDIA gpu高性能深度学习推理。 Juniper Networks Junos OS 存在代码问题漏洞。攻击者利用该漏洞通过VXLAN Multi-homing ESI MLD Packets导致 Junos OS 致命错误，从而触发拒绝服务。

CVSS 6.1 · Medium EPSS 0.34% · P27

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-22217

Vulnerability Information
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Vulnerability Title
Junos OS: QFX10K Series: Denial of Service (DoS) upon receipt of crafted MLD packets on multi-homing ESI in VXLAN
Source: CVE Program / CVE List V5
Vulnerability Description
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS). The issue is caused by malformed MLD packets looping on a multi-homed Ethernet Segment Identifier (ESI) when VXLAN is configured. These MLD packets received on a multi-homed ESI are sent to the peer, and then incorrectly forwarded out the same ESI, violating the split horizon rule. This issue only affects QFX10K Series switches, including the QFX10002, QFX10008, and QFX10016. Other products and platforms are unaffected by this vulnerability. This issue affects Juniper Networks Junos OS on QFX10K Series: All versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R1-S9, 19.2R3-S5; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R2-S7, 19.4R3-S8; 20.1 versions prior to 20.1R3-S4; 20.2 versions prior to 20.2R3-S4; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2-S1, 21.2R3; 21.3 versions prior to 21.3R2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对因果或异常条件的不恰当检查
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 代码问题漏洞
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。Forward是一个应用软件。图书馆对NVIDIA gpu高性能深度学习推理。 Juniper Networks Junos OS 存在代码问题漏洞。攻击者利用该漏洞通过VXLAN Multi-homing ESI MLD Packets导致 Junos OS 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 ~ 19.1R3-S9 -

II. Public POCs for CVE-2022-22217

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III. Intelligence Information for CVE-2022-22217

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Vendor Advisories for CVE-2022-22217 (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-2022-22203 6.5 MEDIUM Junos OS: EX4600 Series and QFX5000 Series: Receipt of specific traffic will lead to an fx
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-2022-22213 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-754

V. Comments for CVE-2022-22217

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