VDB-173753 · CVE-2021-0237 · JSA11132

Juniper Junos OS on EX4300/EX4600/EX4650/QFX5K Packet Forwarding Engine denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Juniper Junos OS on EX4300/EX4600/EX4650/QFX5K. This affects an unknown function of the component Packet Forwarding Engine. The manipulation leads to denial of service. This vulnerability is listed as CVE-2021-0237. The attack must be carried out from within the local network. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Juniper Junos OS on EX4300/EX4600/EX4650/QFX5K (Router Operating System) (version now known). It has been rated as problematic. This issue affects some unknown processing of the component Packet Forwarding Engine. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was presented 04/23/2021 as JSA11132. The advisory is shared at kb.juniper.net. The identification of this vulnerability is CVE-2021-0237. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Router Operating System

Vendor

Juniper

Name

Junos OS

License

commercial

Website

Vendor: https://www.juniper.net/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/27/2020 🔍
04/23/2021 +177 days 🔍
04/23/2021 +0 days 🔍
04/29/2021 +6 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA11132
Status: Confirmed

CVE: CVE-2021-0237 (🔍)
GCVE (CVE): GCVE-0-2021-0237
GCVE (VulDB): GCVE-100-173753

Entryinfo

Created: 04/23/2021 07:36
Updated: 04/29/2021 08:40
Changes: 04/23/2021 07:36 (39), 04/27/2021 11:50 (5), 04/27/2021 11:56 (1), 04/29/2021 08:40 (18)
Complete: 🔍
Cache ID: 216::103