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CVE-2021-0203— Junos OS: EX and QFX5K Series: Storm Control does not work as expected when Redundant Trunk Group is configured

CVSS 8.6 · High EPSS 0.39% · P60
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I. Basic Information for CVE-2021-0203

Vulnerability Information
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Vulnerability Title
Junos OS: EX and QFX5K Series: Storm Control does not work as expected when Redundant Trunk Group is configured
Source: NVD (National Vulnerability Database)
Vulnerability Description
On Juniper Networks EX and QFX5K Series platforms configured with Redundant Trunk Group (RTG), Storm Control profile applied on the RTG interface might not take affect when it reaches the threshold condition. Storm Control enables the device to monitor traffic levels and to drop broadcast, multicast, and unknown unicast packets when a specified traffic level is exceeded, thus preventing packets from proliferating and degrading the LAN. Note: this issue does not affect EX2200, EX3300, EX4200, and EX9200 Series. This issue affects Juniper Networks Junos OS on EX Series and QFX5K Series: 15.1 versions prior to 15.1R7-S7; 16.1 versions prior to 16.1R7-S8; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S2; 18.4 versions prior to 18.4R2-S5, 18.4R3-S3; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2-S1, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S2, 20.1R2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对特殊元素的多个实例的过滤不完全
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS EX和 Junos OS QFX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS EX和Juniper Networks Junos OS QFX都是美国Juniper Networks公司的一款交换机。 Junos OS EX 和 Junos OS QFX5K 存在安全漏洞，攻击者可利用该漏洞通过风暴控制旁路触发一个致命错误，以触发拒绝服务。以下产品及版本受到影响：Juniper Networks Junos OS on EX Series and QFX5K Series: 15.1 versions prior to 15.1R
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 15.1 ~ 15.1R7-S7 -

II. Public POCs for CVE-2021-0203

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III. Intelligence Information for CVE-2021-0203

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Same Patch Batch · Juniper Networks · 2021-01-15 · 19 CVEs total

CVE-2021-021110.0 CRITICALJunos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network tra
CVE-2021-02088.8 HIGHJunos OS and Junos OS Evolved: In bidirectional LSP configurations, on MPLS egress router
CVE-2021-02047.8 HIGHJunos OS: dexp Local Privilege Escalation vulnerabilities in SUID binaries
CVE-2021-02237.8 HIGHJunos OS: telnetd.real Local Privilege Escalation vulnerabilities in SUID binaries
CVE-2021-02187.8 HIGHJunos OS: Command injection vulnerability in license-check daemon
CVE-2021-02077.5 HIGHNFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Se
CVE-2021-02067.5 HIGHJunos OS: NFX Series, SRX Series: PFE may crash upon receipt of specific packet when SSL P
CVE-2021-02027.5 HIGHJunos OS: MX Series, EX9200 Series: Trio-based MPC memory leak when Integrated Routing and
CVE-2021-02177.4 HIGHJunos OS: EX Series and QFX Series: Memory leak issue processing specific DHCP packets
CVE-2021-02227.4 HIGHJunos OS: Upon receipt of certain protocol packets with invalid payloads a self-propagatin
CVE-2021-02106.8 MEDIUMJunos OS: Privilege escalation in J-Web due to arbitrary command and code execution via in
CVE-2021-02206.8 MEDIUMJunos Space: Shared secrets stored in recoverable format and directly exposed through the
CVE-2021-02196.7 MEDIUMJunos OS: Command injection vulnerability in 'request system software' CLI command
CVE-2021-02096.5 MEDIUMJunos OS Evolved: Receipt of certain valid BGP update packets from BGP peers may cause RPD
CVE-2021-02156.5 MEDIUMJunos OS: EX Series, QFX Series, SRX Branch Series, MX Series: Memory leak in packet forwa
CVE-2021-02216.5 MEDIUMJunos OS: QFX Series: Traffic loop Denial of Service (DoS) upon receipt of specific IP mul
CVE-2021-02055.8 MEDIUMJunos OS: MX Series: Dynamic filter fails to match IPv6 prefix
CVE-2021-02125.0 MEDIUMContrail Networking: Administrator credentials are exposed in a plaintext file

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-794

V. Comments for CVE-2021-0203

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