CVE-2020-6829

When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during signature generation. Given an electro-magnetic trace of a few signature generations, the private key could have been computed. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

CVSS v3.0 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

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=1631583	Permissions Required

Configurations

Configuration 1 (hide)

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

Information

Published : 2020-10-28 12:15

Updated : 2020-11-03 13:39

NVD link : CVE-2020-6829

Mitre link : CVE-2020-6829

JSON object : View

Products Affected

mozilla

firefox

CWE

NVD-CWE-noinfo

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