mjs/ES6 mjs.c mjs_string_char_code_at null pointer dereference

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4.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in mjs and ES6. Impacted is the function mjs_string_char_code_at of the file mjs.c. The manipulation results in null pointer dereference. This vulnerability is identified as CVE-2021-33445. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in mjs and ES6 (unknown version). Affected is the function mjs_string_char_code_at 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_string_char_code_at() in mjs.c.

The weakness was released 07/26/2022 as 169. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-33445 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.

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

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: 169
Status: Confirmed

CVE: CVE-2021-33445 (🔍)
GCVE (CVE): GCVE-0-2021-33445
GCVE (VulDB): GCVE-100-205056

Entryinfo

Created: 07/26/2022 18:47
Updated: 08/27/2022 10:53
Changes: 07/26/2022 18:47 (38), 08/27/2022 10:53 (11)
Complete: 🔍
Cache ID: 216::103