cve/2023/CVE-2023-29535.md

### [CVE-2023-29535](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29535)
![](https://img.shields.io/static/v1?label=Product&message=Firefox%20ESR&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Firefox%20for%20Android&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Focus%20for%20Android&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Thunderbird&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%20102.10%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%20112%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Potential%20Memory%20Corruption%20following%20Garbage%20Collector%20compaction&color=brighgreen)

### Description

Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced. This resulted in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/googleprojectzero/fuzzilli
- https://github.com/zhangjiahui-buaa/MasterThesis