cve/2023/CVE-2023-31725.md

### [CVE-2023-31725](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-31725)
![](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

yasm 1.3.0.55.g101bc was discovered to contain a heap-use-after-free via the function expand_mmac_params at yasm/modules/preprocs/nasm/nasm-pp.c.

### POC

#### Reference
- https://github.com/DaisyPo/fuzzing-vulncollect/tree/main/yasm/heap-use-after-free/nasm-pp.c:3878%20in%20expand_mmac_params
- https://github.com/yasm/yasm/issues/221

#### Github
No PoCs found on GitHub currently.