Not rated
CVE-2021-29945 The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash
Description
The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox ESR 78.10 | earliest → < 78.10 | 78.10 |
| Thunderbird 78.10 | earliest → < 78.10 | 78.10 |
| Firefox 88 | earliest → < 88 | 88 |
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