Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2020-1638— Junos OS & Junos OS Evolved: A specific IPv4 packet can lead to FPC restart.

CVSS 7.5 · High EPSS 0.39% · P60
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2020-1638

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Junos OS & Junos OS Evolved: A specific IPv4 packet can lead to FPC restart.
Source: NVD (National Vulnerability Database)
Vulnerability Description
The FPC (Flexible PIC Concentrator) of Juniper Networks Junos OS and Junos OS Evolved may restart after processing a specific IPv4 packet. Only packets destined to the device itself, successfully reaching the RE through existing edge and control plane filtering, will be able to cause the FPC restart. When this issue occurs, all traffic via the FPC will be dropped. By continuously sending this specific IPv4 packet, an attacker can repeatedly crash the FPC, causing an extended Denial of Service (DoS) condition. This issue can only occur when processing a specific IPv4 packet. IPv6 packets cannot trigger this issue. This issue affects: Juniper Networks Junos OS on MX Series with MPC10E or MPC11E and PTX10001: 19.2 versions prior to 19.2R1-S4, 19.2R2; 19.3 versions prior to 19.3R2-S2, 19.3R3; 19.4 versions prior to 19.4R1-S1, 19.4R2. Juniper Networks Junos OS Evolved on on QFX5220, and PTX10003 series: 19.2-EVO versions; 19.3-EVO versions; 19.4-EVO versions prior to 19.4R2-EVO. This issue does not affect Junos OS versions prior to 19.2R1. This issue does not affect Junos OS Evolved versions prior to 19.2R1-EVO.
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
在指针类型上使用sizeof()
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS和Junos OS Evolved 输入验证错误漏洞
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。Junos OS Evolved是Junos OS的升级版。 Juniper Networks Junos OS和Junos OS Evolved中存在安全漏洞。攻击者可通过连续发送IPv4数据包利用该漏洞造成FPC崩溃，导致拒绝服务。以下产品及版本受到影响：Juniper Networks Junos OS
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 19.2 ~ 19.2R1-S4, 19.2R2 -
Juniper NetworksJunos OS unspecified ~ 19.2R1 -
Juniper NetworksJunos OS Evolved 19.2-EVO -
Juniper NetworksJunos OS Evolved unspecified ~ 19.2R1-EVO -

II. Public POCs for CVE-2020-1638

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-1638

请登录查看更多情报信息。

Same Patch Batch · Juniper Networks · 2020-04-08 · 22 CVEs total

CVE-2020-161410.0 CRITICALNFX250 Series: Hardcoded credentials in the vSRX VNF instance.
CVE-2020-16159.8 CRITICALJunos OS: vMX: Default credentials supplied in vMX configuration
CVE-2020-16138.6 HIGHJunos OS: BGP session termination upon receipt of specific BGP FlowSpec advertisement.
CVE-2020-16347.5 HIGHJunos OS: High-End SRX Series: Multicast traffic might cause all FPCs to reset.
CVE-2020-16177.5 HIGHJunos OS: PTX1000 and PTX10000 Series, QFX10000 Series using non-AFT architectures: A spec
CVE-2020-16267.5 HIGHJunos OS Evolved: Denial of Service vulnerability in processing high rate of specific pack
CVE-2020-16277.5 HIGHJunos OS: vMX and MX150: Denial of Service vulnerability in packet processing
CVE-2020-16397.5 HIGHJunos OS: A crafted Ethernet OAM packet received by Junos may cause the Ethernet OAM conne
CVE-2020-16377.2 HIGHJunos OS: SRX Series: Unified Access Control (UAC) bypass vulnerability
CVE-2020-16256.5 MEDIUMJunos OS: Kernel memory leak in virtual-memory due to interface flaps
CVE-2020-16186.3 MEDIUMJunos OS: EX and QFX Series: Console port authentication bypass vulnerability
CVE-2020-16196.0 MEDIUMJunos OS: QFX10K Series, EX9200 Series, MX Series, PTX Series: Privilege escalation vulner
CVE-2020-16295.9 MEDIUMJunos OS: A race condition vulnerability may cause RPD daemon to crash when processing a B
CVE-2020-16245.5 MEDIUMJunos OS Evolved: objmon logs may leak sensitive information
CVE-2020-16225.5 MEDIUMJunos OS Evolved: EvoSharedObjStore may leak sensitive information
CVE-2020-16235.5 MEDIUMJunos OS Evolved: ev.ops file may leak sensitive information
CVE-2020-16205.5 MEDIUMJunos OS Evolved: Configd leaks hashes via log file and is world readable
CVE-2020-16215.5 MEDIUMJunos OS Evolved: Configd leaks hashes via stream and is world readable
CVE-2020-16285.3 MEDIUMJunos OS: EX4300: Traffic from the network internal to the device (128.0.0.0) may be forwa
CVE-2020-16165.3 MEDIUMJATP Series: JATP Is susceptible to slow brute force attacks on the SSH service.

Showing top 20 of 22 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-467

V. Comments for CVE-2020-1638

No comments yet

Leave a comment