VDB-184515 · CVE-2021-0299 · JSA11213

Juniper Junos OS 19.4/20.1/20.2 vmcore 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.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Juniper Junos OS 19.4/20.1/20.2. Affected by this issue is some unknown functionality of the component vmcore. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2021-0299. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Juniper Junos OS 19.4/20.1/20.2 (Router Operating System). It has been classified as critical. This affects some unknown functionality of the component vmcore. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was published 10/17/2021 as JSA11213. It is possible to read the advisory at kb.juniper.net. This vulnerability is uniquely identified as CVE-2021-0299. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 19.4R3, 20.1R2, 20.2R1-S1, 20.2R2 or 20.3R1 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Juniper

Name

Junos OS

Version

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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: 🔍

Upgrade: Junos OS 19.4R3/20.1R2/20.2R1-S1/20.2R2/20.3R1

Timelineinfo

10/27/2020 🔍
10/17/2021 +354 days 🔍
10/17/2021 +0 days 🔍
10/22/2021 +5 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA11213
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-0299 (🔍)
GCVE (CVE): GCVE-0-2021-0299
GCVE (VulDB): GCVE-100-184515

Entryinfo

Created: 10/17/2021 17:55
Updated: 10/22/2021 10:38
Changes: 10/17/2021 17:55 (40), 10/22/2021 10:33 (3), 10/22/2021 10:38 (11)
Complete: 🔍
Cache ID: 216::103