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.
CVE Status: Modified
Attribute | Value |
---|---|
Attack Complexity | HIGH |
Attack Vector | LOCAL |
Availability Impact | NONE |
Base Score | 4.7 |
Base Severity | MEDIUM |
Confidentiality Impact | HIGH |
Integrity Impact | NONE |
Privileges Required | LOW |
Scope | UNCHANGED |
User Interaction | NONE |
Vector String | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
Exploitability Score | 1 |
Impact Score | 3.6 |
Source | [email protected] |
Type | Primary |