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CVE-2021-0202— Juniper Networks MX Series and EX9200 Series 资源管理错误漏洞

CVSS 7.5 · High EPSS 1.03% · P59
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一、 漏洞 CVE-2021-0202 基础信息

漏洞信息
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Vulnerability Title
Junos OS: MX Series, EX9200 Series: Trio-based MPC memory leak when Integrated Routing and Bridging (IRB) interface is mapped to a VPLS instance or a Bridge-Domain
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
On Juniper Networks MX Series and EX9200 Series platforms with Trio-based MPC (Modular Port Concentrator) where Integrated Routing and Bridging (IRB) interface is configured and it is mapped to a VPLS instance or a Bridge-Domain, certain network events at Customer Edge (CE) device may cause memory leak in the MPC which can cause an out of memory and MPC restarts. When this issue occurs, there will be temporary traffic interruption until the MPC is restored. An administrator can use the following CLI command to monitor the status of memory usage level of the MPC: user@device> show system resource-monitor fpc FPC Resource Usage Summary Free Heap Mem Watermark : 20 % Free NH Mem Watermark : 20 % Free Filter Mem Watermark : 20 % * - Watermark reached Slot # % Heap Free RTT Average RTT 1 87 PFE # % ENCAP mem Free % NH mem Free % FW mem Free 0 NA 88 99 1 NA 89 99 When the issue is occurring, the value of “% NH mem Free” will go down until the MPC restarts. This issue affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines). Please refer to https://kb.juniper.net/KB25385 for the list of Trio-based PFEs. This issue affects Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3R3-S8; 17.4R3-S2; 18.2R3-S4, 18.2R3-S5; 18.3R3-S2, 18.3R3-S3; 18.4 versions starting from 18.4R3-S1 and later versions prior to 18.4R3-S6; 19.2 versions starting from 19.2R2 and later versions prior to 19.2R3-S1; 19.4 versions starting from 19.4R2 and later versions prior to 19.4R2-S3, 19.4R3; 20.2 versions starting from 20.2R1 and later versions prior to 20.2R1-S3, 20.2R2. This issue does not affect Juniper Networks Junos OS: 18.1, 19.1, 19.3, 20.1.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
未加控制的资源消耗(资源穷尽)
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Juniper Networks MX Series and EX9200 Series 资源管理错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Juniper Networks MX Series and EX9200 Series 存在资源管理错误漏洞，攻击者可利用该漏洞通过Junos OS MX EX的MPC IRB创建内存泄漏，以触发拒绝服务。以下产品及版本受到影响：Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3R3-S8; 17.4R3-S2; 18.2R3-S4, 18.2R3-S5; 18.3R3-S2, 18.3R3-S3; 18.4 versions star
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商产品影响版本CPE订阅
Juniper NetworksJunos OS 17.3R3-S8 -

二、漏洞 CVE-2021-0202 的公开POC

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三、漏洞 CVE-2021-0202 的情报信息

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CVE-2021-0202 厂商安全公告 (1)

同批安全公告 · Juniper Networks · 2021-01-15 · 共 19 条

CVE-2021-021110.0 CRITICALJuniper Networks Junos OS 代码问题漏洞
CVE-2021-02088.8 HIGHJuniper Networks Junos OS 输入验证错误漏洞
CVE-2021-02038.6 HIGHJuniper Networks Junos OS EX和 Junos OS QFX 安全漏洞
CVE-2021-02047.8 HIGHJuniper Networks Junos OS 信息泄露漏洞
CVE-2021-02237.8 HIGHJuniper Networks Junos OS 授权问题漏洞
CVE-2021-02187.8 HIGHJuniper Networks Junos OS 操作系统命令注入漏洞
CVE-2021-02077.5 HIGHJuniper Networks Junos OS 安全漏洞
CVE-2021-02067.5 HIGHJuniper Networks Junos OS 产品代码问题漏洞
CVE-2021-02177.4 HIGHJuniper Networks Junos OS 产品缓冲区错误漏洞
CVE-2021-02227.4 HIGHJuniper Networks Junos OS 配置错误漏洞
CVE-2021-02106.8 MEDIUMJuniper Networks Junos OS 信息泄露漏洞
CVE-2021-02206.8 MEDIUMJuniper Networks Junos OS 安全漏洞
CVE-2021-02196.7 MEDIUMJuniper Networks Junos OS 操作系统命令注入漏洞
CVE-2021-02096.5 MEDIUMJuniper Networks Junos OS Evolved 缓冲区错误漏洞
CVE-2021-02156.5 MEDIUMJuniper Networks Junos OS 资源管理错误漏洞
CVE-2021-02216.5 MEDIUMJuniper Networks Junos OS QFX 安全漏洞
CVE-2021-02055.8 MEDIUMJuniper Networks Junos OS MX 安全漏洞
CVE-2021-02125.0 MEDIUMJuniper Networks Contrail Networking 信息泄露漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-0202

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