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CVE-2018-12393 A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an…
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 63 | earliest → < 63 | 63 |
| Firefox ESR 60.3 | earliest → < 60.3 | 60.3 |
| Thunderbird 60.3 | earliest → < 60.3 | 60.3 |
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