| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 88.0 | 88.0 |
| firefox esr | < 78.10 | 78.10 |
| thunderbird | < 78.10 | 78.10 |
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
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