When Python was installed on Windows, a python file being served with the MIME type of text/plain could be executed by Python instead of being opened as a text file when the Open option was selected upon download. Note: this issue only occurs on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 72.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 72.0 (excluding) |
| Firefox | Ubuntu | trusty | * |
| Firefox | Ubuntu | upstream | * |
| Mozjs38 | Ubuntu | bionic | * |
| Mozjs38 | Ubuntu | esm-apps/bionic | * |
| Mozjs38 | Ubuntu | upstream | * |
| Mozjs52 | Ubuntu | bionic | * |
| Mozjs52 | Ubuntu | disco | * |
| Mozjs52 | Ubuntu | eoan | * |
| Mozjs52 | Ubuntu | esm-apps/focal | * |
| Mozjs52 | Ubuntu | esm-infra/bionic | * |
| Mozjs52 | Ubuntu | focal | * |
| Mozjs52 | Ubuntu | groovy | * |
| Mozjs52 | Ubuntu | upstream | * |
| Mozjs60 | Ubuntu | disco | * |
| Mozjs60 | Ubuntu | eoan | * |
| Mozjs60 | Ubuntu | upstream | * |
| Thunderbird | Ubuntu | trusty | * |