cve/2018/CVE-2018-12248.md

### [CVE-2018-12248](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12248)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered in mruby 1.4.1. There is a heap-based buffer over-read associated with OP_ENTER because mrbgems/mruby-fiber/src/fiber.c does not extend the stack in cases of many arguments to fiber.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/nautilus-fuzz/nautilus