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CVE-2021-33437

Date: July 26, 2022

An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There are memory leaks in frozen_cb() in mjs.c.

Language: C

Severity Score

Related Resources (4)

https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d
https://nvd.nist.gov/vuln/detail/CVE-2021-33437
https://github.com/cesanta/mjs/issues/160
https://www.mend.io/vulnerability-database/CVE-2021-33437

Severity Score

Weakness Type (CWE)

Missing Release of Memory after Effective Lifetime

CWE-401

Missing Release of Resource after Effective Lifetime

CWE-772

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

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