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CVE-2021-31351— Junos OS: MX Series: Receipt of specific packet on MS-MPC/MS-MIC causes line card reset

CVSS 7.5 · High EPSS 0.39% · P60
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I. Basic Information for CVE-2021-31351

Vulnerability Information
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Vulnerability Title
Junos OS: MX Series: Receipt of specific packet on MS-MPC/MS-MIC causes line card reset
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Improper Check for Unusual or Exceptional Conditions in packet processing on the MS-MPC/MS-MIC utilized by Juniper Networks Junos OS allows a malicious attacker to send a specific packet, triggering the MS-MPC/MS-MIC to reset, causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects specific versions of Juniper Networks Junos OS on MX Series: 17.3R3-S11; 17.4R2-S13; 17.4R3 prior to 17.4R3-S5; 18.1R3-S12; 18.2R2-S8, 18.2R3-S7, 18.2R3-S8; 18.3R3-S4; 18.4R3-S7; 19.1R3-S4, 19.1R3-S5; 19.2R1-S6; 19.3R3-S2; 19.4R2-S4, 19.4R2-S5; 19.4R3-S2; 20.1R2-S1; 20.2R2-S2, 20.2R2-S3, 20.2R3; 20.3R2, 20.3R2-S1; 20.4R1, 20.4R1-S1, 20.4R2; 21.1R1; This issue does not affect any version of Juniper Networks Junos OS prior to 15.1X49-D240;
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/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 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS是美国瞻博网络（Juniper Networks）公司的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 存在代码问题漏洞，该漏洞的存在是由于对 MS-MPC/MS-MIC 上的数据包处理过程中的异常或异常情况检查不当。远程攻击者可以将特制的输入传递给应用程序并执行拒绝服务 (DoS) 攻击。该漏洞允许远程攻击者执行拒绝服务 (DoS) 攻击。
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 ~ 15.1 -
Juniper NetworksJunos OS 17.3R3-S11 -

II. Public POCs for CVE-2021-31351

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III. Intelligence Information for CVE-2021-31351

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Same Patch Batch · Juniper Networks · 2021-10-19 · 42 CVEs total

CVE-2021-313499.8 CRITICALSession Smart Router: Authentication Bypass Vulnerability
CVE-2021-313858.8 HIGHJunos OS: J-Web: A path traversal vulnerability allows an authenticated attacker to elevat
CVE-2021-313728.8 HIGHJunos OS: J-Web allows a locally authenticated attacker to escalate their privileges to ro
CVE-2021-313738.0 HIGHJunos OS: SRX Series: Persistent XSS vulnerability in J-Web
CVE-2021-313558.0 HIGHJunos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal
CVE-2021-313567.8 HIGHJunos OS Evolved: Multiple shell-injection vulnerabilities in EVO UI wrapper scripts
CVE-2021-313597.8 HIGHJunos OS and Junos OS Evolved: Local Privilege Escalation vulnerability
CVE-2021-313587.8 HIGHJunos OS Evolved: shell-injection vulnerabilities in evo_sftp UI wrapper script
CVE-2021-313577.8 HIGHJunos OS Evolved: shell-injection vulnerabilities in evo_tcpdump UI wrapper script
CVE-2021-313767.5 HIGHJunos OS: ACX Series: Packet Forwarding Engine manager (FXPC) process crashes when process
CVE-2021-313797.5 HIGHJunos OS: MX Series: MPC 7/8/9/10/11 cards with MAP-E: PFE halts when an attacker sends ma
CVE-2021-313747.5 HIGHJunos OS and Junos OS Evolved: RPD crash while processing a specially crafted BGP UPDATE o
CVE-2021-313537.5 HIGHJunos OS and Junos OS Evolved: RPD core upon receipt of specific BGP update
CVE-2021-313507.5 HIGHJunos OS and Junos OS Evolved: Privilege escalation vulnerability in Juniper Extension Too
CVE-2021-313837.5 HIGHJunos OS and Junos OS Evolved: In Point to MultiPoint (P2MP) scenarios receipt of various
CVE-2021-02997.5 HIGHJunos OS: Kernel crash (vmcore) upon receipt of a malformed IPv6 packet
CVE-2021-313687.5 HIGHJunos OS: EX2300 Series, EX3400 Series, and ACX710 might become unresponsive if the out-of
CVE-2021-02967.4 HIGHCTPView: HSTS not being enforced on CTPView server.
CVE-2021-313847.2 HIGHJunos OS: SRX Series: Under a specific device configuration an attacker can access the dev
CVE-2021-313757.2 HIGHJunos OS: Receipt of a specific BGP update may cause RPKI policy-checks to be bypassed

Showing top 20 of 42 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-31351

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