cve/2023/CVE-2023-45667.md

### [CVE-2023-45667](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-45667)
![](https://img.shields.io/static/v1?label=Product&message=stb&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20%3C%3D%202.28%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-476%3A%20NULL%20Pointer%20Dereference&color=brighgreen)

### Description

stb_image is a single file MIT licensed library for processing images.If `stbi__load_gif_main` in `stbi_load_gif_from_memory` fails it returns a null pointer and may keep the `z` variable uninitialized. In case the caller also sets the flip vertically flag, it continues and calls `stbi__vertical_flip_slices` with the null pointer result value and the uninitialized `z` value. This may result in a program crash.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds