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CVE-2021-0287— Junos OS and Junos OS Evolved: RPD could crash in SR-ISIS/MPLS environment due to a flap of an ISIS link in the network

CVSS 6.5 · Medium EPSS 0.08% · P23
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I. Basic Information for CVE-2021-0287

Vulnerability Information
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Vulnerability Title
Junos OS and Junos OS Evolved: RPD could crash in SR-ISIS/MPLS environment due to a flap of an ISIS link in the network
Source: NVD (National Vulnerability Database)
Vulnerability Description
In a Segment Routing ISIS (SR-ISIS)/MPLS environment, on Juniper Networks Junos OS and Junos OS Evolved devices, configured with ISIS Flexible Algorithm for Segment Routing and sensor-based statistics, a flap of a ISIS link in the network, can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued link flaps will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 19.4 versions prior to 19.4R1-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R2; Juniper Networks Junos OS Evolved: 20.3-EVO versions prior to 20.3R2-EVO; 20.4-EVO versions prior to 20.4R2-EVO. This issue does not affect: Juniper Networks Junos OS releases prior to 19.4R1. Juniper Networks Junos OS Evolved releases prior to 19.4R1-EVO.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对因果或异常条件的不恰当检查
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS Evolved 代码问题漏洞
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。 Junos OS Evolved 存在代码问题漏洞，该漏洞源于设备配置了用于分段路由和基于传感器的统计信息的ISIS灵活算法，网络中ISIS链路的一个襟翼可以导致路由进程守护程序崩溃并重新启动，从而导致拒绝服务。以下产品及版本受到影响：Junos OS 19.4, 20.1, 20.2, 20.3. This issue affects Junos O
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

VendorProductAffected VersionsCPESubscribe
Juniper NetworksJunos OS unspecified ~ 19.4R1 -
Juniper NetworksJunos OS Evolved unspecified ~ 19.4R1-EVO -

II. Public POCs for CVE-2021-0287

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III. Intelligence Information for CVE-2021-0287

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Same Patch Batch · Juniper Networks · 2021-07-15 · 19 CVEs total

CVE-2021-02769.8 CRITICALSteel-Belted Radius Carrier Edition: Remote code execution vulnerability when EAP Authenti
CVE-2021-02778.8 HIGHJunos OS and Junos OS Evolved: LLDP Out-of-Bounds Read vulnerability in l2cpd
CVE-2021-02788.8 HIGHJunos OS: J-Web allows a locally authenticated attacker to escalate their privileges to ro
CVE-2021-02798.6 HIGHContrail Cloud: Hardcoded credentials for RabbitMQ service
CVE-2021-02857.5 HIGHJunos OS: QFX5000 Series and EX4600 Series: Continuous traffic destined to a device config
CVE-2021-02807.5 HIGHJunos OS: PTX Series, QFX10K Series: Upon receipt of specific packets BFD sessions might f
CVE-2021-02827.5 HIGHJunos OS: RPD crash while processing a specific BGP UPDATE when Multipath or add-path feat
CVE-2021-02837.5 HIGHJunos OS: Upon receipt of specific sequences of genuine packets destined to the device the
CVE-2021-02867.5 HIGHJunos OS Evolved: Specially crafted packets may cause the AFT manager process to crash and
CVE-2021-02886.5 MEDIUMJunos OS: MX Series, EX9200 Series: FPC may crash upon receipt of specific MPLS packet aff
CVE-2021-02896.5 MEDIUMJunos OS: User-defined ARP Policer isn't applied on Aggregated Ethernet (AE) interface unt
CVE-2021-02906.5 MEDIUMJunos OS: MX Series, EX9200 Series, SRX4600: Ethernet interface vulnerable to specially cr
CVE-2021-02916.5 MEDIUMJunos OS and Junos OS Evolved: A vulnerability allows a network based unauthenticated atta
CVE-2021-02926.5 MEDIUMJunos OS Evolved: Memory leak in arpd or ndp processes can lead to Denial of Service (DoS)
CVE-2021-02956.1 MEDIUMJunos OS: QFX10K Series: Denial of Service (DoS) upon receipt of DVMRP packets received on
CVE-2021-02815.9 MEDIUMJunos OS and Junos OS Evolved: Specific packets can trigger rpd crash when BGP Origin Vali
CVE-2021-02935.5 MEDIUMJunos OS: Out-of-memory condition and crashes can occur after executing a certain CLI comm
CVE-2021-02945.3 MEDIUMJunos OS: QFX5000 Series and EX4600 Series: Enhanced storm control might not work leading

IV. Related Vulnerabilities

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

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