VDB-228914 · CVE-2023-31918 · Issue 5064

Jerryscript 3.0 js-parser.c parser_parse_function_arguments 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.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Jerryscript 3.0. This issue affects the function parser_parse_function_arguments of the file jerry-core/parser/js/js-parser.c. Such manipulation leads to assertion. This vulnerability is traded as CVE-2023-31918. There is no exploit available.

Detailsinfo

A vulnerability was found in Jerryscript 3.0. It has been rated as critical. Affected by this issue is the function parser_parse_function_arguments of the file jerry-core/parser/js/js-parser.c. The manipulation with an unknown input leads to a assertion vulnerability. Using CWE to declare the problem leads to 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. The impact remains unknown. CVE summarizes:

Jerryscript 3.0 (commit 1a2c047) was discovered to contain an Assertion Failure via the parser_parse_function_arguments at jerry-core/parser/js/js-parser.c.

The weakness was shared 05/12/2023 as 5064. The advisory is available at github.com. This vulnerability is handled as CVE-2023-31918 since 04/29/2023. Technical details are known, but there is no available exploit.

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 EUVD (EUVD-2023-36207). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Programming Tool Software

Name

Jerryscript

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector: 🔍

CVSSv2info

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

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

Exploitinginfo

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

Physical: Partially
Local: Yes
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/29/2023 🔍
05/12/2023 +13 days 🔍
05/12/2023 +0 days 🔍
12/29/2025 +962 days 🔍

Sourcesinfo

Advisory: 5064
Status: Confirmed

CVE: CVE-2023-31918 (🔍)
GCVE (CVE): GCVE-0-2023-31918
GCVE (VulDB): GCVE-100-228914
EUVD: 🔍

Entryinfo

Created: 05/12/2023 17:26
Updated: 12/29/2025 12:41
Changes: 05/12/2023 17:26 (38), 06/08/2023 12:10 (9), 01/24/2025 21:51 (24), 12/29/2025 12:41 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.