CVEs-PoC/2021/CVE-2021-27219.md

### [CVE-2021-27219](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27219)
![](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 GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. The function g_bytes_new has an integer overflow on 64-bit platforms due to an implicit cast from 64 bits to 32 bits. The overflow could potentially lead to memory corruption.

### POC

#### Reference
- https://gitlab.gnome.org/GNOME/glib/-/issues/2319

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/fokypoky/places-list