VDB-191320 · CVE-2021-46347 · Issue 4938

JerryScript 3.0.0 ecma-objects.c ecma_object_check_class_name_is_object assertion

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.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in JerryScript 3.0.0. This affects the function ecma_object_check_class_name_is_object of the file /jerry-core/ecma/operations/ecma-objects.c. Executing a manipulation can lead to assertion. This vulnerability is registered as CVE-2021-46347. No exploit is available.

Detailsinfo

A vulnerability was found in JerryScript 3.0.0. It has been declared as problematic. This vulnerability affects the function ecma_object_check_class_name_is_object of the file /jerry-core/ecma/operations/ecma-objects.c. The manipulation with an unknown input leads to a assertion vulnerability. The CWE definition for the vulnerability is CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. As an impact it is known to affect availability.

The weakness was published 01/21/2022 as 4938. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-46347 since 01/18/2022. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 262833 (Linux Distros Unpatched Vulnerability : CVE-2021-46347), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (262833). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Programming Tool Software

Name

JerryScript

Version

3.0.0

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Assertion
CWE: CWE-617
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 262833
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-46347

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/18/2022 🔍
01/21/2022 +3 days 🔍
01/21/2022 +0 days 🔍
09/11/2025 +1328 days 🔍

Sourcesinfo

Advisory: 4938
Status: Not defined

CVE: CVE-2021-46347 (🔍)
GCVE (CVE): GCVE-0-2021-46347
GCVE (VulDB): GCVE-100-191320

Entryinfo

Created: 01/21/2022 08:36
Updated: 09/11/2025 00:25
Changes: 01/21/2022 08:36 (37), 01/26/2022 12:35 (1), 01/26/2022 12:43 (1), 09/11/2025 00:25 (17)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.