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CVE-2021-0258— Junos OS: Kernel panic upon receipt of specific TCPv6 packet on management interface

Quick assessment

Affected
Juniper Networks Junos OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 存在竞争条件问题漏洞，由于内部资源管理不当，在以太管理接口转发TCPy6中转报文时存在漏洞。远程攻击者可以向系统发送专门制作的TCPy6流量，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。

CVSS 5.9 · Medium EPSS 0.65% · P49
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I. Basic Information for CVE-2021-0258

Vulnerability Information
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Vulnerability Title
Junos OS: Kernel panic upon receipt of specific TCPv6 packet on management interface
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the forwarding of transit TCPv6 packets received on the Ethernet management interface of Juniper Networks Junos OS allows an attacker to trigger a kernel panic, leading to a Denial of Service (DoS). Continued receipt and processing of these transit packets will create a sustained Denial of Service (DoS) condition. This issue only occurs when TCPv6 packets are routed through the management interface. Other transit traffic, and traffic destined to the management interface, are unaffected by this vulnerability. This issue was introduced as part of a TCP Parallelization feature added in Junos OS 17.2, and affects systems with concurrent network stack enabled. This feature is enabled by default, but can be disabled (see WORKAROUND section below). This issue affects Juniper Networks Junos OS: 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2. This issue does not affect Juniper Networks Junos OS versions prior to 17.2R1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 竞争条件问题漏洞
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。 Junos OS 存在竞争条件问题漏洞，由于内部资源管理不当，在以太管理接口转发TCPy6中转报文时存在漏洞。远程攻击者可以向系统发送专门制作的TCPy6流量，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

Vendor Product Affected Versions CPE Subscribe
Juniper Networks Junos OS 17.2 ~ 17.2R1 -

II. Public POCs for CVE-2021-0258

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III. Intelligence Information for CVE-2021-0258

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Vendor Advisories for CVE-2021-0258 (1)

Same Patch Batch · Juniper Networks · 2021-04-22 · 53 CVEs total

CVE-2021-0248 10.0 CRITICAL NFX Series: Hard-coded credentials allow an attacker to take control of any instance throu
CVE-2021-0254 9.8 CRITICAL Junos OS: Remote code execution vulnerability in overlayd service
CVE-2021-0275 8.8 HIGH Junos OS: J-Web: Cross-site scripting attack allows an attacker to gain control of another
CVE-2021-0268 8.8 HIGH Junos OS: J-Web has an Improper Neutralization of CRLF Sequences in its HTTP Headers which
CVE-2021-0269 8.8 HIGH Junos OS: J-Web can be compromised through reflected client-side HTTP parameter pollution
CVE-2021-0251 8.6 HIGH Junos OS: MX Series with MS-PIC, MS-SPC3, MS-MIC or MS-MPC: The BRAS Subscriber Services s
CVE-2021-0249 8.1 HIGH Junos OS: SRX Series: A remote attacker may be able to cause a PFE buffer overflow to arbi
CVE-2021-0266 8.1 HIGH cSRX: Use of Hard-coded Cryptographic Keys allows an attacker to take control of the devic
CVE-2021-0265 8.1 HIGH Contrail Insights: The REST API implementation allows an unauthenticated remote attacker t
CVE-2021-0252 7.8 HIGH Junos OS: NFX Series: Local Code Execution Vulnerability in JDMD Leads to Privilege Escala
CVE-2021-0245 7.8 HIGH Junos OS: Junos Fusion: Hard-coded credentials on satellite devices allows a locally authe
CVE-2021-0253 7.8 HIGH Junos OS: NFX Series: Local Command Execution Vulnerability in JDMD Leads to Privilege Esc
CVE-2021-0230 7.5 HIGH Junos OS: SRX Series: Memory leak when querying Aggregated Ethernet (AE) interface statist
CVE-2021-0227 7.5 HIGH Junos OS: SRX Series: Denial of Service in J-Web upon receipt of crafted HTTP packets
CVE-2021-0250 7.5 HIGH Junos OS and Junos OS Evolved: An attacker sending a specific crafted BGP update message w
CVE-2021-0233 7.5 HIGH Junos OS: ACX500 Series, ACX4000 Series: Denial of Service due to FFEB crash while process
CVE-2021-0270 7.5 HIGH Junos OS: PTX Series, QFX10K Series: A PTX/QFX FPC may restart unexpectedly with the "inli
CVE-2021-0261 7.5 HIGH Junos OS: Denial of Service vulnerability in J-Web and web based (HTTP/HTTPS) services cau
CVE-2021-0232 7.4 HIGH Paragon Active Assurance: Authentication bypass vulnerability in Control Center
CVE-2021-0244 7.4 HIGH Junos OS: A race condition in the storm control profile may allow an attacker to cause a D

Showing top 20 of 53 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-362

V. Comments for CVE-2021-0258

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