cve/2022/CVE-2022-45403.md

### [CVE-2022-45403](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-45403)
![](https://img.shields.io/static/v1?label=Product&message=Firefox%20ESR&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Thunderbird&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%20102.5%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%20107%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Service%20Workers%20might%20have%20learned%20size%20of%20cross-origin%20media%20files&color=brighgreen)

### Description

Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon