mjs/ES6 mjs.c mjs_bcode_part_get_by_offset null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in mjs and ES6. This impacts the function mjs_bcode_part_get_by_offset of the file mjs.c. Executing a manipulation can lead to null pointer dereference. This vulnerability is registered as CVE-2021-33449. No exploit is available.

Detailsinfo

A vulnerability has been found in mjs and ES6 (affected version not known) and classified as problematic. This vulnerability affects the function mjs_bcode_part_get_by_offset of the file mjs.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect 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_part_get_by_offset() in mjs.c.

The weakness was published 07/26/2022 as 162. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-33449 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: 162
Status: Confirmed

CVE: CVE-2021-33449 (🔍)
GCVE (CVE): GCVE-0-2021-33449
GCVE (VulDB): GCVE-100-205060

Entryinfo

Created: 07/26/2022 18:49
Updated: 08/27/2022 11:12
Changes: 07/26/2022 18:49 (38), 08/27/2022 11:12 (11)
Complete: 🔍
Cache ID: 216::103

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