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CVE-2024-47502— Junos OS Evolved: TCP session state is not always cleared on the Routing Engine leading to DoS

Quick assessment

Affected
Juniper Networks Junos OS Evolved
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 Evolved是美国瞻博网络（Juniper Networks）公司的Junos OS 的升级版系统。 Juniper Networks Junos OS Evolved存在安全漏洞，该漏洞源于资源分配不受控制。

CVSS 7.5 · High EPSS 0.64% · P49
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I. Basic Information for CVE-2024-47502

Vulnerability Information
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Vulnerability Title
Junos OS Evolved: TCP session state is not always cleared on the Routing Engine leading to DoS
Source: CVE Program / CVE List V5
Vulnerability Description
An Allocation of Resources Without Limits or Throttling vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS). In specific cases the state of TCP sessions that are terminated is not cleared, which over time leads to an exhaustion of resources, preventing new connections to the control plane from being established. A continuously increasing number of connections shown by: user@host > show system connections is indicative of the problem. To recover the respective RE needs to be restarted manually. This issue only affects IPv4 but does not affect IPv6. This issue only affects TCP sessions established in-band (over an interface on an FPC) but not out-of-band (over the management ethernet port on the routing-engine). This issue affects Junos OS Evolved:  * All versions before 21.4R3-S9-EVO, * 22.2 versions before 22.2R3-S4-EVO, * 22.4 version before 22.4R3-S3-EVO, * 23.2 versions before 23.2R2-S1-EVO, * 23.4 versions before 23.4R2-EVO.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS Evolved 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS Evolved是美国瞻博网络（Juniper Networks）公司的Junos OS 的升级版系统。 Juniper Networks Junos OS Evolved存在安全漏洞，该漏洞源于资源分配不受控制。
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 Evolved 0 ~ 21.4R3-S9-EVO -

II. Public POCs for CVE-2024-47502

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III. Intelligence Information for CVE-2024-47502

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Vendor Advisories for CVE-2024-47502 (1)

Same Patch Batch · Juniper Networks · 2024-10-11 · 25 CVEs total

CVE-2024-47490 8.2 HIGH Junos OS Evolved: ACX 7000 Series: Receipt of specific transit MPLS packets causes resourc
CVE-2024-39547 7.5 HIGH Junos OS and Junos OS Evolved: cRPD: Receipt of crafted TCP traffic can trigger high CPU u
CVE-2024-47504 7.5 HIGH Junos OS: SRX5000 Series: Receipt of a specific malformed packet will cause a flowd crash
CVE-2024-47497 7.5 HIGH Junos OS: SRX Series, QFX Series, MX Series and EX Series: Receiving specific HTTPS traffi
CVE-2024-47499 7.5 HIGH Junos OS and Junos OS Evolved: In a BMP scenario receipt of a malformed AS PATH attribute
CVE-2024-39563 7.3 HIGH Junos Space: Remote Command Execution (RCE) vulnerability in web application
CVE-2024-47495 6.7 MEDIUM Junos OS Evolved: In a dual-RE scenario a locally authenticated attacker with shell privil
CVE-2024-39526 6.5 MEDIUM Junos OS and Junos OS Evolved: MX Series with MPC10/MPC11/LC9600, MX304, EX9200, PTX Serie
CVE-2024-47493 6.5 MEDIUM Junos OS: MX Series: Trio-based FPCs: Continuous physical Interface flaps causes local FPC
CVE-2024-47498 6.5 MEDIUM Junos OS Evolved: QFX5000 Series: Configured MAC learning and move limits are not in effec
CVE-2024-47503 6.5 MEDIUM Junos OS: SRX4600 and SRX5000 Series: Sequence of specific PIM packets causes a flowd cras
CVE-2024-47505 6.5 MEDIUM Junos OS Evolved: Specific low privileged CLI commands and SNMP GET requests can trigger a
CVE-2024-47508 6.5 MEDIUM Junos OS Evolved: Specific low privileged CLI commands and SNMP GET requests can trigger a
CVE-2024-47509 6.5 MEDIUM Junos OS Evolved: Specific low privileged CLI commands and SNMP GET requests can trigger a
CVE-2024-47494 5.9 MEDIUM Junos OS: Due to a race condition AgentD process causes a memory corruption and FPC reset
CVE-2024-47491 5.9 MEDIUM Junos OS and Junos OS Evolved: Receipt of a specific malformed BGP path attribute leads to
CVE-2024-47506 5.9 MEDIUM Junos OS: SRX Series: A large amount of traffic being processed by ATP Cloud can lead to a
CVE-2024-47489 5.8 MEDIUM Junos OS Evolved: ACX Series: Receipt of specific transit protocol packets is incorrectly
CVE-2024-47507 5.8 MEDIUM Junos OS and Junos OS Evolved: BGP update message containing aggregator attribute with an
CVE-2024-47501 5.5 MEDIUM Junos OS: MX304, MX with MPC10/11/LC9600, and EX9200 with EX9200-15C: In a VPLS or Junos F

Showing top 20 of 25 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS Evolved
Same vendor: Juniper Networks
Same weakness: CWE-770

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