Use-after-free vulnerability in the nsRefreshDriver::Tick function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by leveraging improper interaction between timeline destruction and the Web Animations model implementation.
| Software | From | Fixed in |
|---|---|---|
| mozilla / firefox | - | 48.0.2.x |
| mozilla / firefox | 45.1.0 | 45.1.0.x |
| mozilla / firefox | 45.1.1 | 45.1.1.x |
| mozilla / firefox | 45.2.0 | 45.2.0.x |
| mozilla / firefox | 45.3.0 | 45.3.0.x |