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CVE-2020-1661— Junos OS: jdhcpd process crash when forwarding a malformed DHCP packet.

CVSS 5.3 · Medium EPSS 0.27% · P50
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I. Basic Information for CVE-2020-1661

Vulnerability Information
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Vulnerability Title
Junos OS: jdhcpd process crash when forwarding a malformed DHCP packet.
Source: NVD (National Vulnerability Database)
Vulnerability Description
On Juniper Networks Junos OS devices configured as a DHCP forwarder, the Juniper Networks Dynamic Host Configuration Protocol Daemon (jdhcp) process might crash when receiving a malformed DHCP packet. This issue only affects devices configured as DHCP forwarder with forward-only option, that forward specified DHCP client packets, without creating a new subscriber session. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of the malformed DHCP packet will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. This issue can be triggered only by DHCPv4, it cannot be triggered by DHCPv6. This issue affects Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S16; 12.3X48 versions prior to 12.3X48-D105 on SRX Series; 14.1X53 versions prior to 14.1X53-D60 on EX and QFX Series; 15.1 versions prior to 15.1R7-S7; 15.1X49 versions prior to 15.1X49-D221, 15.1X49-D230 on SRX Series; 15.1X53 versions prior to 15.1X53-D593 on EX2300/EX3400; 16.1 versions prior to 16.1R7-S5.
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:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS 安全漏洞
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 存在安全漏洞，攻击者可利用该漏洞可以通过jdhcpd触发致命错误，从而触发拒绝服务。
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 12.3 ~ 12.3R12-S16 -
Juniper NetworksJunos OS 12.3X48 ~ 12.3X48-D105 -
Juniper NetworksJunos OS 14.1X53 ~ 14.1X53-D60 -
Juniper NetworksJunos OS 15.1X53 ~ 15.1X53-D593 -

II. Public POCs for CVE-2020-1661

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III. Intelligence Information for CVE-2020-1661

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Same Patch Batch · Juniper Networks · 2020-10-16 · 30 CVEs total

CVE-2020-16568.8 HIGHJunos OS: When a DHCPv6 Relay-Agent is configured upon receipt of a specific DHCPv6 client
CVE-2020-16738.8 HIGHJunos OS: Reflected Cross-site Scripting vulnerability in J-Web and web based (HTTP/HTTPS)
CVE-2020-16608.3 HIGHJunos OS: MX Series: Receipt of specific packets can cause services card to restart when D
CVE-2020-16678.3 HIGHJunos OS: MX Series: Services card might restart due to a race condition when DNS filterin
CVE-2020-16758.3 HIGHJuniper Networks Mist Cloud UI: SAML authentication certificate vulnerability.
CVE-2020-16647.8 HIGHJunos OS: Buffer overflow vulnerability in device control daemon
CVE-2020-16577.5 HIGHJunos OS: SRX Series: An attacker sending spoofed packets to IPSec peers may cause a Denia
CVE-2020-16867.5 HIGHJunos OS: Kernel crash (vmcore) upon receipt of a malformed IPv6 packet.
CVE-2020-16847.5 HIGHJunos OS: SRX Series: High CPU load due to processing for HTTP traffic when Application Id
CVE-2020-16837.5 HIGHJunos OS: Memory leak leads to kernel crash (vmcore) due to SNMP polling
CVE-2020-16797.5 HIGHJunos OS: PTX/QFX Series: Kernel Routing Table (KRT) queue stuck after packet sampling a m
CVE-2020-16727.5 HIGHJunos OS: jdhcpd process crash when processing a specific DHCPDv6 packet in DHCPv6 relay c
CVE-2020-16627.5 HIGHJunos OS and Junos OS Evolved: RPD crash due to BGP session flapping.
CVE-2020-16717.5 HIGHJunos OS: Receipt of malformed DHCPv6 packets causes jdhcpd to crash.
CVE-2020-16767.2 HIGHJuniper Networks Mist Cloud UI: SAML authentication response handling vulnerability.
CVE-2020-16777.2 HIGHJuniper Networks Mist Cloud UI: SAML authentication attribute elements handling vulnerabil
CVE-2020-16666.6 MEDIUMJunos OS Evolved: 'console log-out-on-disconnect' fails to terminate session on console ca
CVE-2020-16816.5 MEDIUMJunos OS Evolved: Receipt of a specifically malformed NDP packet could lead to Denial of S
CVE-2020-16896.5 MEDIUMJunos OS: EX4300-MP/EX4600/QFX5K Series: High CPU load due to receipt of specific layer 2
CVE-2020-16886.5 MEDIUMJunos OS: SRX and NFX Series: Insufficient Web API private key protection

Showing top 20 of 30 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks

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