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CVE-2021-38498 During process shutdown, a document could have caused a use-after-free of a languages service object, leading to…
Description
During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 93 | earliest → < 93 | 93 |
| Thunderbird 91.2 | earliest → < 91.2 | 91.2 |
| Firefox ESR 91.2 | earliest → < 91.2 | 91.2 |
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