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CVE-2021-0208— Junos OS and Junos OS Evolved: In bidirectional LSP configurations, on MPLS egress router RPD may core upon receipt of specific malformed RSVP packet.

CVSS 8.8 · High EPSS 0.17% · P37
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I. Basic Information for CVE-2021-0208

Vulnerability Information
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Vulnerability Title
Junos OS and Junos OS Evolved: In bidirectional LSP configurations, on MPLS egress router RPD may core upon receipt of specific malformed RSVP packet.
Source: NVD (National Vulnerability Database)
Vulnerability Description
An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper Networks Junos OS allows an attacker to send a malformed RSVP packet when bidirectional LSPs are in use, which when received by an egress router crashes the RPD causing a Denial of Service (DoS) condition. Continued receipt of the packet will sustain the Denial of Service. This issue affects: Juniper Networks Junos OS: All versions prior to 17.3R3-S10 except 15.1X49-D240 for SRX series; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S2; 19.1 versions prior to 19.1R1-S5, 19.1R3-S3; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3-S1; 20.1 versions prior to 20.1R1-S4, 20.1R2; 15.1X49 versions prior to 15.1X49-D240 on SRX Series. Juniper Networks Junos OS Evolved: 19.3 versions prior to 19.3R2-S5-EVO; 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S4-EVO.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS和Junos OS Evolved都是美国瞻博网络（Juniper Networks）公司的产品。Juniper Networks Junos OS是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。Junos OS Evolved是Junos OS 的升级版系统。 Junos OS 存在输入验证错误漏洞，攻击者可利用该漏洞通过Junos的双向LSP RS
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 ~ 17.3R3-S10 -
Juniper NetworksJunos OS 15.1X49 ~ 15.1X49-D240 -
Juniper NetworksJunos OS Evolved 19.3 ~ 19.3R2-S5-EVO -

II. Public POCs for CVE-2021-0208

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III. Intelligence Information for CVE-2021-0208

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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-2021-02038.6 HIGHJunos OS: EX and QFX5K Series: Storm Control does not work as expected when Redundant Trun
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-2021-02047.8 HIGHJunos OS: dexp Local Privilege Escalation vulnerabilities in SUID binaries
CVE-2021-02067.5 HIGHJunos OS: NFX Series, SRX Series: PFE may crash upon receipt of specific packet when SSL P
CVE-2021-02077.5 HIGHNFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Se
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-20

V. Comments for CVE-2021-0208

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