| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 63.0 | 63.0 |
| firefox esr | < 60.3 | 60.3 |
| thunderbird | < 60.3 | 60.3 |
A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.
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