Heap Buffer Overflow in Cesanta MJS Product Versions
CVE-2021-46527

7.8HIGH

Key Information:

Vendor

Cesanta

Status
Mjs
Vendor
CVE Published:
27 January 2022

What is CVE-2021-46527?

A heap buffer overflow vulnerability has been identified in Cesanta MJS version 2.20.0. This weakness arises from improper handling of strings in the mjs_get_cstring function located in src/mjs_string.c, potentially allowing attackers to manipulate memory, leading to unpredictable behavior or system crashes.

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References

https://github.com/cesanta/mjs/issues/197
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

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