| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 117.0 | 117.0 |
| firefox esr | < 115.2 | 115.2 |
| thunderbird | < 115.2 | 115.2 |
When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
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