CVE-2021-38498
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Mozilla Firefox
PublishedNov 3, 2021
First seenNov 3, 2021
How to fix
Update
- mozilla firefox93.0 or later
- mozilla firefox_esr91.2 or later
- mozilla thunderbird91.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 93.0 | 93.0 |
| mozilla firefox_esr | v < 91.2 | 91.2 |
| mozilla thunderbird | v < 91.2 | 91.2 |
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