CVE-2022-31742
Medium
Description
An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mozilla Firefox
PublishedDec 22, 2022
First seenDec 22, 2022
Weakness typeCWE-203CWE-203
How to fix
Update
- mozilla firefox101 or later
- mozilla firefox_esr91.10 or later
- mozilla thunderbird91.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 101 | 101 |
| mozilla firefox_esr | v < 91.10 | 91.10 |
| mozilla thunderbird | v < 91.10 | 91.10 |
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