A use-after-free vulnerability can occur while manipulating video elements if the body is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
| Software | From | Fixed in |
|---|---|---|
| mozilla / firefox | - | 69.0 |
| mozilla / firefox_esr | - | 60.9.0 |
| mozilla / firefox_esr | 68.0 | 68.1.0 |
| mozilla / thunderbird | - | 60.9.0 |
| mozilla / thunderbird | 68.0 | 68.1.0 |