mjs/ES6 mjs.c mjs_bcode_commit null pointer dereference

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4.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in mjs and ES6. This issue affects the function mjs_bcode_commit of the file mjs.c. The manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2021-33440. There is no exploit available.

Detailsinfo

A vulnerability was found in mjs and ES6 (version unknown). It has been classified as problematic. Affected is the function mjs_bcode_commit of the file mjs.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is NULL pointer dereference in mjs_bcode_commit() in mjs.c.

The weakness was shared 07/26/2022. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-33440 since 05/20/2021. There are known technical details, but no exploit is available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/20/2021 🔍
07/26/2022 +432 days 🔍
07/26/2022 +0 days 🔍
08/27/2022 +32 days 🔍

Sourcesinfo

Advisory: 163
Status: Confirmed

CVE: CVE-2021-33440 (🔍)
GCVE (CVE): GCVE-0-2021-33440
GCVE (VulDB): GCVE-100-205044

Entryinfo

Created: 07/26/2022 16:38
Updated: 08/27/2022 10:00
Changes: 07/26/2022 16:38 (37), 08/27/2022 09:59 (1), 08/27/2022 10:00 (11)
Complete: 🔍
Cache ID: 216::103