VDB-229716 · CVE-2023-31670 · Issue 2199

wasm2c/wasm2wat/wasm-decompile/wasm-validate 1.0.32 Binary 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.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in wasm2c, wasm2wat, wasm-decompile and wasm-validate 1.0.32 and classified as problematic. This vulnerability affects unknown code of the component Binary Handler. The manipulation results in denial of service. This vulnerability is identified as CVE-2023-31670. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in wasm2c, wasm2wat, wasm-decompile and wasm-validate 1.0.32. Affected is an unknown code of the component Binary Handler. 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. CVE summarizes:

An issue in wasm2c 1.0.32, wasm2wat 1.0.32, wasm-decompile 1.0.32, and wasm-validate 1.0.32 allows attackers to cause a Denial of Service (DoS) via running a crafted binary.

The weakness was released 05/23/2023 as 2199. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-31670 since 04/29/2023. There are neither technical details nor an exploit publicly available.

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-2023-35965). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

1.0.32

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

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: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/29/2023 🔍
05/23/2023 +24 days 🔍
05/23/2023 +0 days 🔍
12/28/2025 +949 days 🔍

Sourcesinfo

Advisory: 2199
Status: Confirmed

CVE: CVE-2023-31670 (🔍)
GCVE (CVE): GCVE-0-2023-31670
GCVE (VulDB): GCVE-100-229716
EUVD: 🔍

Entryinfo

Created: 05/23/2023 07:44
Updated: 12/28/2025 00:45
Changes: 05/23/2023 07:44 (38), 06/16/2023 10:20 (11), 01/31/2025 16:44 (26), 12/28/2025 00:45 (1)
Complete: 🔍
Cache ID: 216::103