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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-31875 Detail

Disputed     

Current Description

In mjs_json.c in Cesanta MongooseOS mJS 1.26, a maliciously formed JSON string can trigger an off-by-one heap-based buffer overflow in mjs_json_parse, which can potentially lead to redirection of control flow. NOTE: the original reporter disputes the significance of this finding because "there isn’t very much of an opportunity to exploit this reliably for an information leak, so there isn’t any real security impact."


View Analysis Description

Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/418sec/mjs/pull/2 Patch  Third Party Advisory 
https://github.com/418sec/mjs/pull/2 Patch  Third Party Advisory 
https://github.com/cesanta/mjs/releases/tag/1.26 Release Notes  Third Party Advisory 
https://github.com/cesanta/mjs/releases/tag/1.26 Release Notes  Third Party Advisory 
https://huntr.dev/bounties/1-other-mjs/ Exploit  Third Party Advisory 
https://huntr.dev/bounties/1-other-mjs/ Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-193 Off-by-one Error cwe source acceptance level NIST  
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-31875
NVD Published Date:
04/28/2021
NVD Last Modified:
11/21/2024
Source:
MITRE