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CVE-2024-39517— Junos OS and Junos OS Evolved: Upon processing specific L2 traffic, rpd can hang in devices with EVPN/VXLAN configured

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和Juniper Networks Junos OS Evolved都是美国瞻博网络（Juniper Networks）公司的产品。Juniper Networks Junos OS是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 Evolved是Junos OS 的升级版系统。 Juniper Networks Junos OS和Juniper Network

CVSS 6.5 · Medium EPSS 0.25% · P14
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I. Basic Information for CVE-2024-39517

Vulnerability Information
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Vulnerability Title
Junos OS and Junos OS Evolved: Upon processing specific L2 traffic, rpd can hang in devices with EVPN/VXLAN configured
Source: CVE Program / CVE List V5
Vulnerability Description
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS). In an EVPN/VXLAN scenario, when a high amount specific Layer 2 packets are processed by the device, it can cause the Routing Protocol Daemon (rpd) to utilize all CPU resources which causes the device to hang. A manual restart of the rpd is required to restore services. This issue affects both IPv4 and IPv6 implementations. This issue affects Junos OS: All versions earlier than 21.4R3-S7; 22.1 versions earlier than 22.1R3-S5; 22.2 versions earlier than 22.2R3-S3; 22.3 versions earlier than 22.3R3-S3; 22.4 versions earlier than 22.4R3-S2; 23.2 versions earlier than 23.2R2; 23.4 versions earlier than 23.4R1-S1. Junos OS Evolved: All versions earlier than 21.4R3-S7-EVO; 22.1-EVO versions earlier than 22.1R3-S5-EVO; 22.2-EVO versions earlier than 22.2R3-S3-EVO; 22.3-EVO versions earlier than 22.3R3-S3-EVO; 22.4-EVO versions earlier than 22.4R3-S2-EVO; 23.2-EVO versions earlier than 23.2R2-EVO; 23.4-EVO versions earlier than 23.4R1-S1-EVO, 23.4R2-EVO.
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
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和Juniper Networks Junos OS Evolved 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS和Juniper Networks Junos OS Evolved都是美国瞻博网络（Juniper Networks）公司的产品。Juniper Networks Junos OS是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 Evolved是Junos OS 的升级版系统。 Juniper Networks Junos OS和Juniper Network
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 0 ~ 21.2R3-S8 -
Juniper Networks Junos OS Evolved 0 ~ 21.2R3-S8-EVO -

II. Public POCs for CVE-2024-39517

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III. Intelligence Information for CVE-2024-39517

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Other References for CVE-2024-39517 (1)

Same Patch Batch · Juniper Networks · 2024-07-10 · 15 CVEs total

CVE-2024-39518 7.5 HIGH Junos OS: MX240, MX480, MX960 platforms using MPC10E: Memory leak will be observed when su
CVE-2024-39562 7.5 HIGH Junos OS Evolved: A high rate of SSH connections causes a Denial of Service
CVE-2024-39555 7.5 HIGH Junos OS and Junos OS Evolved: Receipt of a specific malformed BGP update causes the sessi
CVE-2024-39512 6.6 MEDIUM Junos OS Evolved: User is not logged out when the console cable is disconnected
CVE-2024-39514 6.5 MEDIUM Junos OS and Junos OS Evolved: Receiving specific traffic on devices with EVPN-VPWS with I
CVE-2024-39560 6.5 MEDIUM Junos OS and Junos OS Evolved: Memory leak due to RSVP neighbor persistent error leading t
CVE-2024-39558 6.5 MEDIUM Junos OS and Junos OS Evolved: Receipt of specific PIM packet causes rpd crash when PIM is
CVE-2024-39557 6.5 MEDIUM Junos OS Evolved: MAC table changes cause a memory leak
CVE-2024-39556 6.4 MEDIUM Junos OS and Junos OS Evolved: Loading a malicious certificate from the CLI may result in
CVE-2024-39559 5.9 MEDIUM Junos OS Evolved: Receipt of a specific TCP packet may result in a system crash (vmcore) o
CVE-2024-39554 5.9 MEDIUM Junos OS and Junos OS Evolved: BGP multipath incremental calculation is resulting in an rp
CVE-2024-39561 5.8 MEDIUM Junos OS: SRX4600, SRX5000 Series: TCP packets with SYN/FIN or SYN/RST are transferred aft
CVE-2024-39513 5.5 MEDIUM Junos OS Evolved: Execution of a specific CLI command will cause a crash in the AFT manage
CVE-2024-39511 5.5 MEDIUM Junos OS: The 802.1X Authentication Daemon crashes on running a specific command

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-754

V. Comments for CVE-2024-39517

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