| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 78.0 | 78.0 |
| firefox esr | < 68.10 | 68.10 |
| thunderbird | < 68.10.0 | 68.10.0 |
When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
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