cve/2019/CVE-2019-13225.md

### [CVE-2019-13225](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13225)
![](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

A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause denial of service by providing a crafted regular expression. Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/balabit-deps/balabit-os-8-libonig
- https://github.com/balabit-deps/balabit-os-9-libonig
- https://github.com/deepin-community/libonig
- https://github.com/kkos/oniguruma
- https://github.com/onivim/esy-oniguruma
- https://github.com/winlibs/oniguruma