CVE-2020-12401

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.

CVSS v3.0 4.7 MEDIUM
CVSS v2.0 1.9 LOW

4.7^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

1.9^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:M/Au:N/C:P/I:N/A:N

Exploitability : 3.4 / Impact : 2.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://www.mozilla.org/security/advisories/mfsa2020-36/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-39/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1631573	Issue Tracking Permissions Required Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox::::::android::*

Information

Published : 2020-10-08 14:15

Updated : 2021-07-21 11:39

NVD link : CVE-2020-12401

Mitre link : CVE-2020-12401

JSON object : View

Products Affected

mozilla

firefox

CWE

CWE-327

Use of a Broken or Risky Cryptographic Algorithm

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