NULL Pointer Dereference in mJS JavaScript Engine Affecting Cesanta Software
CVE-2021-33444

5.5MEDIUM

Key Information:

Vendor

Cesanta

Status
Mjs
Vendor
CVE Published:
26 July 2022

What is CVE-2021-33444?

A NULL pointer dereference vulnerability in the mJS JavaScript engine can lead to unexpected behavior during the execution of JavaScript code. This flaw is located in the function getprop_builtin_foreign() within mjs.c, potentially allowing attackers to crash the engine or cause other adverse effects. It is crucial for developers using mJS to review their implementations and apply patches to mitigate risks associated with this vulnerability.

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References

https://github.com/cesanta/mjs/issues/166
x_refsource_MISC
https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f7...
x_refsource_MISC

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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