CVE-2020-12401
Medium
Description
During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar multiplication was removed, resulting in variable-time execution dependent on secret data. This vulnerability affects Firefox < 80 and Firefox for Android < 80.
SeverityMedium
CVSS4.7
Exploit probability—
Product
Mozilla Firefox
PublishedOct 8, 2020
First seenOct 8, 2020
How to fix
Update
- mozilla firefox80.0 or later
- mozilla firefox_mobile80.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 80.0 | 80.0 |
| mozilla firefox_mobile | v < 80.0 | 80.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
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