CVE-2021-31875

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Summary

CVECVE-2021-31875
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-04-29 02:15:00 UTC
Updated2023-11-07 03:35:00 UTC
Description** DISPUTED ** 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."

Risk And Classification

Problem Types: CWE-787 | CWE-193

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cesanta Mongooseos Mjs 1.26 All All All

References

ReferenceSourceLinkTags
Release v1.26 · cesanta/mjs · GitHub MISC github.com
huntr: Off-by-One Heap-based Buffer Overflow C Vulnerability in mjs MISC huntr.dev
Fix culprit for JSON heap overflow by ex0dus-0x · Pull Request #2 · 418sec/mjs · GitHub MISC github.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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