An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges. This vulnerability affects Firefox < 138 and Thunderbird < 138.
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 138.0 (excluding) |
| Thunderbird | Mozilla | * | 138.0 (excluding) |
| Firefox | Ubuntu | focal | * |
| Firefox | Ubuntu | upstream | * |
| Mozjs102 | Ubuntu | esm-apps/noble | * |
| Mozjs102 | Ubuntu | jammy | * |
| Mozjs102 | Ubuntu | noble | * |
| Mozjs115 | Ubuntu | devel | * |
| Mozjs115 | Ubuntu | noble | * |
| Mozjs115 | Ubuntu | oracular | * |
| Mozjs115 | Ubuntu | plucky | * |
| Mozjs52 | Ubuntu | esm-infra/bionic | * |
| Mozjs52 | Ubuntu | focal | * |
| Mozjs68 | Ubuntu | focal | * |
| Mozjs78 | Ubuntu | jammy | * |
| Mozjs91 | Ubuntu | jammy | * |
| Thunderbird | Ubuntu | focal | * |
| Thunderbird | Ubuntu | jammy | * |
| Thunderbird | Ubuntu | upstream | * |