mjs/ES6 mjs.c getprop_builtin_foreign null pointer dereference
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.5 | $0-$5k | 0.00 |
Summary
A vulnerability was found in mjs and ES6. It has been rated as problematic. Affected by this vulnerability is the function getprop_builtin_foreign of the file mjs.c. This manipulation causes null pointer dereference.
This vulnerability is handled as CVE-2021-33444. There is not any exploit available.
Details
A vulnerability has been found in mjs and ES6 (version unknown) and classified as problematic. Affected by this vulnerability is the function getprop_builtin_foreign 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. The summary by CVE is:
An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is NULL pointer dereference in getprop_builtin_foreign() in mjs.c.
The weakness was released 07/26/2022 as 166. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-33444 since 05/20/2021. Technical details of the vulnerability 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.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.5VulDB 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: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Null pointer dereferenceCWE: 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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
05/20/2021 🔍07/26/2022 🔍
07/26/2022 🔍
08/27/2022 🔍
Sources
Advisory: 166Status: Confirmed
CVE: CVE-2021-33444 (🔍)
GCVE (CVE): GCVE-0-2021-33444
GCVE (VulDB): GCVE-100-205051
Entry
Created: 07/26/2022 18:40Updated: 08/27/2022 10:28
Changes: 07/26/2022 18:40 (38), 08/27/2022 10:28 (11)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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