Heap Buffer Overflow in Cesanta MJS v2.20.0
CVE-2021-46524

7.8HIGH

Key Information:

Vendor

Cesanta

Status
Mjs
Vendor
CVE Published:
27 January 2022

What is CVE-2021-46524?

Cesanta MJS version 2.20.0 is vulnerable to a heap buffer overflow due to improper handling of JSON parsing in the function snquote at mjs/src/mjs_json.c. This vulnerability could allow an attacker to exploit the system, potentially leading to unauthorized access or application crashes. It is crucial for users of this version to implement the necessary patches or updates to mitigate this risk.

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References

https://github.com/cesanta/mjs/issues/192
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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