| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 52.1.0< 53.0 | 52.1.053.0 |
| thunderbird | < 52.1.0 | 52.1.0 |
A possibly exploitable crash triggered during layout and manipulation of bidirectional unicode text in concert with CSS animations. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.
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